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All Patents of Type: hand screws
Patents 1 - 15 of 28
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NumberDatePatenteeTitleType
57,195Aug. 14, 1866H. SchmidtScrew Clamphand screws
71,983Dec. 10, 1867G.H. Coe, G.H. SnowImprovement in clampshand screws
126,425May 07, 1872S.L. ThompsonImprovement in Hand-Clampshand screws
197,672Nov. 27, 1877A.M. SchappaImprovement in Hand Screw-Clampshand screws
214,403Apr. 15, 1879W.F. LaneImprovement in Hand Screw-Clampshand screws
229,008Jun. 22, 1880C.F. PettingellHand-screwhand screws
237,431Feb. 08, 1881A.M. ColtClamp for Wood Workinghand screws
D13,690Mar. 06, 1883A.J. BenjaminHand Screw Or Clamphand screws
357,524Feb. 08, 1887W.H. DenneyClamp or visehand screws
385,983Jul. 10, 1888P.A. WhitneyClamphand screws
386,279Jul. 17, 1888W.P. TarbellClamphand screws
534,164Feb. 12, 1895M.F. LarshHand Screw-Clamphand screws
687,836Dec. 03, 1901H. JorgensenHand-Screw Clamphand screws
781,958Feb. 07, 1905H.A. KnokeClamphand screws
783,502Feb. 28, 1905W. Black, J. BlackClamp or visehand screws
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