Matches in DBpedia 2016-04 for { ?s ?p "Carl Kellner (March 26, 1826 – May 13, 1855) was a German mechanic and self-educated mathematician who founded in 1849 an \"Optical Institute\" that later became the Leitz company, makers of the Leica cameras."@en }
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- Carl_Kellner_(optician) abstract "Carl Kellner (March 26, 1826 – May 13, 1855) was a German mechanic and self-educated mathematician who founded in 1849 an \"Optical Institute\" that later became the Leitz company, makers of the Leica cameras.".
- Carl_Kellner_(optician) comment "Carl Kellner (March 26, 1826 – May 13, 1855) was a German mechanic and self-educated mathematician who founded in 1849 an \"Optical Institute\" that later became the Leitz company, makers of the Leica cameras.".