All Patents in class 227/52


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All Patents in class 227/52
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
654,708	Jul. 31, 1900	F. Brune	Punching and Riveting Machine	punch presses
1,731,358	Oct. 15, 1929	E.B. Stimpson	Riveting machine	riveting machines