Matches in DBpedia 2015-04 for { ?s ?p "Abraham Lincoln's patent is a patented invention to lift boats over shoals and obstructions in a river. It is the only United States patent ever registered to a President of the United States. Lincoln conceived the idea of inventing a mechanism that would lift a boat over shoals and obstructions when on two different occasions the boat on which he traveled got hung up on obstructions."@en }
Showing triples 1 to 1 of
1
with 100 triples per page.
- Abraham_Lincoln's_patent comment "Abraham Lincoln's patent is a patented invention to lift boats over shoals and obstructions in a river. It is the only United States patent ever registered to a President of the United States. Lincoln conceived the idea of inventing a mechanism that would lift a boat over shoals and obstructions when on two different occasions the boat on which he traveled got hung up on obstructions.".