Patents for Leonard O. Carlsen


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Patents for Leonard O. Carlsen
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	1,656,633	Jan. 17, 1928	E.C. Head, L.O. Carlsen, E. Finsen	Gear-cutting machine
	2,101,237	Dec. 07, 1937	L.O. Carlsen	Machine for producing gears
	2,188,996	Feb. 06, 1940	L.O. Carlsen	Indexing mechanism