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Patents Granted on 1937-03-23
Patents 1 - 7 of 7
First set of recordsLast set of records
NumberDatePatenteeTitleType
D103,676Mar. 23, 1937G.O. Leopold, T.J. FegleyDesign for a Screw Driverscrewdrivers
2,074,371Mar. 23, 1937J. Cummings, E.H. SheldonDrawer guide
2,074,396Mar. 23, 1937W.H. HoweImpedance Variation Amplifiermachine tool controls
2,074,545Mar. 23, 1937T.G. Louis, K.A. HarmonMagnetoignition systems
2,074,597Mar. 23, 1937R.E. StarkAerating apparatus
2,074,844Mar. 23, 1937C.H. HillMetalworking Machinemetal lathe accessories and attachments
2,074,961Mar. 23, 1937W.G. HoelscherMachine tool feeding mechanismmetal lathes
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