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Patents for H. E. Hart
Patents 1 - 7 of 7
First set of recordsLast set of records
NumberDatePatenteeTitleType
591,528Oct. 12, 1897J.B. FordWrenchbicycle or pocket wrenches
684,488Oct. 15, 1901P.A. WhitneyManufacture of Wrench Forgingsmaking wrenches
684,489Oct. 15, 1901P.A. WhitneyManufacture of Wrench Jawsmaking wrenches
773,591Nov. 01, 1904C.D. RiceMultiple-spindle drill-pressdrill presses
826,894Jul. 24, 1906R.H. ShailerHandle for toolstool handles
915,012Mar. 09, 1909L.G. BayrerDrop Press and Attachment Thereforstamping presses
984,708Feb. 21, 1911C.D. RiceBelt-gearingdrill presses
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