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Patents for Keystone Mfg. Co.
Patents 1 - 7 of 7
First set of recordsLast set of records
288,098Nov. 06, 1883C.H. MyersWrenchratchet wrenches
446,072Feb. 10, 1891C.H. MyersCombined Ratchet Wrench & Screwdriverwrench combination tools
446,073Feb. 10, 1891C.H. MyersRatchet Wrench & Drillwrench combination tools
446,075Feb. 10, 1891C.H. MyersCombined Ratchet Wrench & Boring Bitwrench combination tools
869,255Oct. 29, 1907C.H. MyersWrenchratchet wrenches
1,534,537Apr. 21, 1925E.S. MillerHolder for Socket Wrench Setswrench set holders
1,761,263Jun. 03, 1930F.A. HaistMethod of Making Ratchet Wrenchesratchet wrenches
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