Patents for H. G. Prost


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Patents for H. G. Prost
Patents 1 - 3 of 3
Number	Date	Patentee	Title	Type
1,078,919	Nov. 18, 1913	E.J. Hall	Internal-combustion engine	internal combustion engines
1,212,478	Jan. 16, 1917	E.J. Hall	Carburetor	carburetors
1,347,623	Jul. 27, 1920	C.S. Evans	Vise	vises