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Patents Granted on 1931-03-17
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,796,369Mar. 17, 1931J.E. HirstSupport and slide for endless feed chains of sawing machines and the likewoodworking machine stockfeeding mechanisms
1,796,790Mar. 17, 1931E.S. IngrahamAttachment for automatic screw machines
1,796,923Mar. 17, 1931V.S. Firestone, D. SwardLatch
1,797,121Mar. 17, 1931F.J. BohnMicrometer Gage for Internal Threadsmicrometers
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