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Patents for Henry Drury
Patents 1 - 9 of 9
First set of recordsLast set of records
NumberDatePatenteeTitleType
227,962May 25, 1880S. DarlingDividing Engine
233,488Oct. 19, 1880S. DarlingArt of Manufacturing Mathematical Instruments
454,958Jun. 30, 1891E.A. WalkerBelt-Shifter for Planing-Machinesmetal planers
454,959Jun. 30, 1891E.A. WalkerFeed-Screw and Nutmetal planers
454,960Jun. 30, 1891E.A. WalkerFrictional Feed-Clutchmetal planers
CA-54,773Jan. 27, 1897M. WengerWrenchquick adjust wrenches
618,859Feb. 07, 1899J. GardinerWrenchscrew adjust wrenches
618,899Feb. 07, 1899W.M. NorcrossWrenchquick adjust wrenches
624,535May 09, 1899H.W. PowelDevice for Gaging & Positioning Tools for Slide Rest Lathesspecial purpose gauges
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