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Patents for Francis W. Robinson
Patents 1 - 8 of 8
First set of recordsLast set of records
NumberDatePatenteeTitleType
21,367Aug. 31, 1858F.W. RobinsonStraw-carrier of threshing-machinesthreshers
21,628Sep. 28, 1858F.W. RobinsonImprovement in riddles for threshing-machinesthreshers
26,786Jan. 10, 1860F.W. RobinsonImprovement in horse-poweranimal powered apparatus
30,932Dec. 18, 1860F.W. RobinsonImprovement in grain-separatorsfanning mills
49,791Sep. 05, 1865F.W. RobinsonImprovement in sawing-machinesdrag saws
RE2,117Nov. 28, 1865F.W. RobinsonImprovement in sawing-machinesdrag saws
300,397Jun. 17, 1884F.W. RobinsonTraction Enginesuspensions
311,530Feb. 03, 1885F.W. RobinsonTraction Enginesuspensions
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