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Patents for E. K. Boynton
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
342,507May 25, 1886G.H. FoxRevolverrevolvers
390,216Oct. 02, 1888G.F. EvansSpeed Regulating Deviceindustrial machine pulleys and belt drive mechanisms
395,431Jan. 01, 1889G.E. FranklinImprovements in Monkey Wrencheswrench jaw components
523,020Jul. 17, 1894C. TinglofWrenchscrew adjust wrenches
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