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All Patents in class 470/138
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
182,962Oct. 03, 1876H. RuddickImprovement in rivet-heading machinesrivet making machines
330,901Nov. 24, 1885H.J. JohnsonMachine for forging bolt-blanksnut or bolt making machines
393,618Nov. 27, 1888L. CoesMachine For Forming Screw Blanks For Wrenchesmaking wrenches
1,012,341Dec. 19, 1911E.W. DurstonPunch-block for heading-machines
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