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Patents for C. P. Humphrey
Patents 1 - 6 of 6
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
276,064Apr. 17, 1883N. MorseJar Holder
  282,577Aug. 07, 1883W.A. SidnellLathe Dog
660,618Oct. 30, 1900P.B. BosworthDevice for truing commutators
667,151Jan. 29, 1901J.R. LongVise
667,152Jan. 29, 1901J.R. LongVise
676,728Jun. 18, 1901E.E. Webster, J.O. SchmittFillet Cutting Machine
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