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- Henry_Blair_(inventor) abstract "Henry Blair (1807–1860) was the second African American inventor to receive a patent.He was born in Glen Ross, Maryland, United States in 1807. His first invention was the Seed-Planter, patented October 14, 1834, which allowed farmers to plant more corn using less labor in a smaller amount of time. On August 31, 1836 he obtained a second patent for a cotton planter. This invention worked by splitting the ground with two shovel-like blades which were pulled along by a horse. A wheel-driven cylinder followed behind which dropped the seed into the newly plowed ground. Blair had been a successful farmer for years and developed the inventions as a means of increasing efficiency in farming.In the patent records, Blair is listed as a "colored man"; making this identification the only one of its kind in early patent records. Blair was illiterate, therefore he signed his patents with an "x". It is not known if Blair was a freedman or not. At the time that his patents were granted United States patent law allowed both freed and enslaved people to obtain patents. In 1857 this law was challenged by a slave-owner who claimed that he owned "all the fruits of the slave's labor" including his slave's inventions. This resulted in the change of the law in 1858 which stated that slaves were not citizens and therefore could not hold patents. After the American Civil War, in 1871, the law was changed to grant all men (but not women) patent rights. He died in 1860.".
- Henry_Blair_(inventor) birthDate "1807".
- Henry_Blair_(inventor) birthPlace Montgomery_County,_Maryland.
- Henry_Blair_(inventor) birthYear "1807".
- Henry_Blair_(inventor) deathDate "1860".
- Henry_Blair_(inventor) deathYear "1860".
- Henry_Blair_(inventor) occupation Henry_Blair_(inventor)__1.
- Henry_Blair_(inventor) occupation Henry_Blair_(inventor)__2.
- Henry_Blair_(inventor) thumbnail SeedPlanter-BlairX8447-1.jpg?width=300.
- Henry_Blair_(inventor) wikiPageExternalLink CottonPlanter-Blair15.htm.
- Henry_Blair_(inventor) wikiPageExternalLink SeedPlanter-BlairX8447.htm.
- Henry_Blair_(inventor) wikiPageID "10921366".
- Henry_Blair_(inventor) wikiPageLength "4338".
- Henry_Blair_(inventor) wikiPageOutDegree "14".
- Henry_Blair_(inventor) wikiPageRevisionID "649718967".
- Henry_Blair_(inventor) wikiPageWikiLink American_Civil_War.
- Henry_Blair_(inventor) wikiPageWikiLink Category:1807_births.
- Henry_Blair_(inventor) wikiPageWikiLink Category:1860_deaths.
- Henry_Blair_(inventor) wikiPageWikiLink Category:African-American_farmers.
- Henry_Blair_(inventor) wikiPageWikiLink Category:African-American_history_of_Maryland.
- Henry_Blair_(inventor) wikiPageWikiLink Category:African-American_inventors.
- Henry_Blair_(inventor) wikiPageWikiLink Category:American_inventors.
- Henry_Blair_(inventor) wikiPageWikiLink Category:Farmers_from_Maryland.
- Henry_Blair_(inventor) wikiPageWikiLink Category:People_from_Montgomery_County,_Maryland.
- Henry_Blair_(inventor) wikiPageWikiLink Freedman.
- Henry_Blair_(inventor) wikiPageWikiLink Illiterate.
- Henry_Blair_(inventor) wikiPageWikiLink Literacy.
- Henry_Blair_(inventor) wikiPageWikiLink Montgomery_County,_Maryland.
- Henry_Blair_(inventor) wikiPageWikiLinkText "Blair, Henry".
- Henry_Blair_(inventor) wikiPageWikiLinkText "Henry Blair (inventor)".
- Henry_Blair_(inventor) birthDate "1807".
- Henry_Blair_(inventor) birthPlace "Glen Ross, Maryland, United States".
- Henry_Blair_(inventor) caption "The drawing of the Seed-Planter by Blair used on the patent application in 1836.".
- Henry_Blair_(inventor) dateOfBirth "1807".
- Henry_Blair_(inventor) dateOfDeath "1860".
- Henry_Blair_(inventor) deathDate "1860".
- Henry_Blair_(inventor) hasPhotoCollection Henry_Blair_(inventor).
- Henry_Blair_(inventor) knownFor "The second black man to obtain a patent".
- Henry_Blair_(inventor) name "Blair, Henry".
- Henry_Blair_(inventor) name "Henry Blair".
- Henry_Blair_(inventor) nationality "American".
- Henry_Blair_(inventor) occupation "Farmer".
- Henry_Blair_(inventor) occupation "Inventor".
- Henry_Blair_(inventor) placeOfBirth "Glen Ross, Maryland, United States".
- Henry_Blair_(inventor) shortDescription "American invenotr".
- Henry_Blair_(inventor) wikiPageUsesTemplate Template:Infobox_person.
- Henry_Blair_(inventor) wikiPageUsesTemplate Template:Other_people.
- Henry_Blair_(inventor) wikiPageUsesTemplate Template:Persondata.
- Henry_Blair_(inventor) wikiPageUsesTemplate Template:Reflist.
- Henry_Blair_(inventor) wikiPageUsesTemplate Template:US-engineer-stub.
- Henry_Blair_(inventor) description "American invenotr".
- Henry_Blair_(inventor) description "American invenotr".
- Henry_Blair_(inventor) subject Category:1807_births.
- Henry_Blair_(inventor) subject Category:1860_deaths.
- Henry_Blair_(inventor) subject Category:African-American_farmers.
- Henry_Blair_(inventor) subject Category:African-American_history_of_Maryland.
- Henry_Blair_(inventor) subject Category:African-American_inventors.
- Henry_Blair_(inventor) subject Category:American_inventors.
- Henry_Blair_(inventor) subject Category:Farmers_from_Maryland.
- Henry_Blair_(inventor) subject Category:People_from_Montgomery_County,_Maryland.
- Henry_Blair_(inventor) hypernym Inventor.
- Henry_Blair_(inventor) type Agent.
- Henry_Blair_(inventor) type Person.
- Henry_Blair_(inventor) type Person.
- Henry_Blair_(inventor) type Agent.
- Henry_Blair_(inventor) type NaturalPerson.
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- Henry_Blair_(inventor) type Q215627.
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- Henry_Blair_(inventor) comment "Henry Blair (1807–1860) was the second African American inventor to receive a patent.He was born in Glen Ross, Maryland, United States in 1807. His first invention was the Seed-Planter, patented October 14, 1834, which allowed farmers to plant more corn using less labor in a smaller amount of time. On August 31, 1836 he obtained a second patent for a cotton planter. This invention worked by splitting the ground with two shovel-like blades which were pulled along by a horse.".
- Henry_Blair_(inventor) label "Henry Blair (inventor)".
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- Henry_Blair_(inventor) sameAs Q5718264.
- Henry_Blair_(inventor) sameAs Q5718264.
- Henry_Blair_(inventor) wasDerivedFrom Henry_Blair_(inventor)?oldid=649718967.
- Henry_Blair_(inventor) depiction SeedPlanter-BlairX8447-1.jpg.
- Henry_Blair_(inventor) givenName "Henry".
- Henry_Blair_(inventor) isPrimaryTopicOf Henry_Blair_(inventor).
- Henry_Blair_(inventor) name "Blair, Henry".
- Henry_Blair_(inventor) name "Henry Blair".
- Henry_Blair_(inventor) surname "Blair".