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Patents for John P. Sawin
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,308XMay 17, 1810J. Skinner, J.P. SawinTide Milltide mills
1,418XJan. 24, 1811J.P. SawinCo-operating frictionless cylinders
1,423XJan. 28, 1811T.B. Wait, J.P. SawinCylindrical printing pressprinting presses
1,433XFeb. 08, 1811J. Skinner, J.P. SawinNail machine for cutting and heading at one operationnail making machines
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