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All Patents in class 140/71.5
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
458,115Aug. 18, 1891E. ThomsonMethod of Electric Bending and Straighteningmetal bending machines
1,745,852Feb. 04, 1930N.W. Burbridge, E.E. HawkinsonCage Making Machine
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