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Patents for Geo. M. Hopkins
Patents 1 - 4 of 4
First set of recordsLast set of records
202,457Apr. 16, 1878P.A. OliverDevice For Extracting Keysauxiliary wrenches
208,057Sep. 17, 1878A. BeckRatchet Wrench or Ratchet Drillratchet wrenches
334,567Jan. 19, 1886G.N. ClemsonSaw (hardening method)
336,697Feb. 23, 1886G.N. ClemsonSaw (hardening method)
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