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Patents for Hubert P. Richards
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
813,586Feb. 27, 1906H.P. RichardsRatchet mechanism for tools
817,936Apr. 17, 1906H.P. RichardsChuckdrill chucks
960,402Jun. 07, 1910H.P. RichardsBit-Brace Chuckbrace chucks
1,026,367May 14, 1912H.P. RichardsZigzag Rule Jointfolding rule joints
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