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Patents for B. B. Hull
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
583,935Jun. 08, 1897F.E. Case, W.B. PotterSeries Parallel Controllermotor controls
609,681Aug. 23, 1898A.J. KniffenRouter Plane with Sleeves to Hold the Cutterrouter planes
620,966Mar. 14, 1899E.W. Rice, Jr., C.P. SteinmetzInduction Motorinduction motors
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