All Patents in class 416/61


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All Patents in class 416/61
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
1,855,174	Apr. 26, 1932	H.F. Bakewell	Power application and control means
2,496,169	Jan. 31, 1950	E. Lochman	Variable pitch propeller