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Patents for Ruby Robinson
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
854,688May 21, 1907A.J. BrownController-operating meansmotor controls
854,704May 21, 1907W.J. RichardsDynamo-electric machinemotor commutators
872,641Dec. 03, 1907W.F. Bouch√©Shaft-oscillatorelectric motors
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