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Patents for Leon J. Barnard
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
2,410,038Oct. 29, 1946M.H. Arms, L.J. BarnardGrinding machinesgrinders
2,449,831Sep. 21, 1948M.H. Arms, L.J. BarnardChuckgrinders
3,167,064Jan. 26, 1965L.J. BarnardGrinding wheel truing mechanismgrinder dressers
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