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All Patents in class 221/239
Patents 1 - 5 of 5
First set of recordsLast set of records
NumberDatePatenteeTitleType
246,933Sep. 13, 1881S.L. WorsleyMachine for Feeding Screw Blanksmetal threading machines
489,547Jan. 10, 1893R.J. ShipleyPunching and riveting machinemetal punching machines
953,752Apr. 05, 1910A.H. NeureutherAutomatic Pinion Cutting Machinegear making machines
1,835,591Dec. 08, 1931E.P. BullardAutomatic Work Feeding and Chucking Means for Multiple Spindle Lathes
2,796,616Jun. 25, 1957R.L. LeinweberAutoamtic Transfer Mechanism for Forging Machines and the Likeworkpiece changers and storage mechanisms
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