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All Patents of Type: metal punches
Patents 1 - 14 of 14
First set of recordsLast set of records
NumberDatePatenteeTitleType
31,835Mar. 26, 1861T.F. TaftShear and punchmetal punches
161,968Apr. 13, 1875D. KennedyMetal Punchmetal punches
219,555Sep. 09, 1879O.C. WoolsonImprovement in hydraulic-power machineshydraulic apparatus
244,488Jul. 19, 1881H.A. SchneeklothCombined anvil, punch, and shearsmetal shears
264,837Sep. 19, 1882H.B. KinneyPower-presspunch presses
362,566May 10, 1887A. BeaudryMachine for punching, shearing, &c., of metalsmetal punches
395,675Jan. 01, 1889J. WeeksHydraulic punch, &c.hydraulic apparatus
421,895Feb. 25, 1890A. BeaudryMachine for punching and shearing metalmetal punches
490,401Jan. 24, 1893H.A. SchneeklothPunching, shearing, and forging machinemetal punches
833,294Oct. 16, 1906G.J. BlumPunching and shearing mechanismmetal punches
876,920Jan. 14, 1908J. WeeksHydraulic jack, punch, and similar machinehydraulic jacks
902,643Nov. 03, 1908G.J. BlumPunchmetal punches
4,907,481Mar. 13, 1990C.J. Dvorak, J. DvorakPowered press with manual punch and die alignment capabilitymetal punches
5,170,689Dec. 15, 1992J. DvorakMetal working machinemetal punches
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