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All Patents in class 12/33
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
17,914Aug. 04, 1857R. BraytonNut Machinenut or bolt making machines
1,463,095Jul. 24, 1923A. RudnayMicrometer Attachmentmicrometer attachments
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