Patents Granted on 1857-06-30


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Patents Granted on 1857-06-30
Patents 1 - 5 of 5
Number	Date	Patentee	Title	Type
NS-30	Jun. 30, 1857	J.H. Headley	Artificial granite
17,677	Jun. 30, 1857	H. Harpold	Adjustable fender-post for sawmills	reciprocating sawmills
17,686	Jun. 30, 1857	M. Ludwig	Sawing-machine for felling trees	firewood machines
17,701	Jun. 30, 1857	H.B. Smith	Mortising-machine	mortising machines
17,719	Jun. 30, 1857	H.F. Willson	Crosscut-sawing apparatus	circular sawmills