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All Patents in class 417/526
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
3,899Jan. 31, 1845W.N. ClarkSingle-Twist Auger, Gimlet, &c.auger bits
56,671Jul. 24, 1866J.W. DouglasDouble acting pumphousehold hand pumps
202,633Apr. 23, 1878N. CluteDouble-Acting Suction and Force Pumppumps
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