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Patents for John H. Shumway
Patents 1 - 15 of 22
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NumberDatePatenteeTitleType
51,967Jan. 09, 1866W. Schollhorn, F.P. PflegharImprovement in Compasses and Caliperscalipers
52,335Jan. 30, 1866N.C. StilesClutchmetal punches
55,704Jun. 19, 1866A. PondImproved Tack-Hammertack hammers
57,934Sep. 11, 1866E. LymanScrew Gagespecial purpose gauges
61,503Jan. 29, 1867H.D. BarnesImprovement in shingle machinesshingle machines
67,644Aug. 13, 1867G. Gilbert, A.N. AllenImprovement in ironing machines
71,440Nov. 26, 1867H.D. BarnesImprovement in floor-clampsfloor clamps
71,442Nov. 26, 1867A.B. BeanImprovement in knife-sharpenersharpening apparatus
71,983Dec. 10, 1867G.H. Coe, G.H. SnowImprovement in clampshand screws
77,347Apr. 28, 1868A.B. BeanImprovement in nut machinesnut or bolt making machines
79,193Jun. 23, 1868C. BishopShears
86,605Feb. 02, 1869I.P. TiceImprovement in molding-machineswood shapers
89,335Apr. 27, 1869L.J. ParsonsImproved Tool Adjuster for Lathesmetal lathe accessories
90,755Jun. 01, 1869W.A. IvesImprovement in Auger-Bitsauger bits
92,573Jul. 13, 1869L.P. BradleyImprovement in tape-measurestape measures
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