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Patents Granted on 1850-07-30
Patents 1 - 2 of 2
First set of recordsLast set of records
7,523Jul. 30, 1850A. EverettMachinery for turning out wooden bowlswood lathes
7,536Jul. 30, 1850C.A. Spring, P. BoonArrangement of pressure and feed rollers in planing-machineswood planers
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