All Patents in class 474/1


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All Patents in class 474/1
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
2,075,240	Mar. 30, 1937	H.E. Tautz	Speed change mechanism for screw machines
2,974,672	Mar. 14, 1961	G.B. Fox	Washing machine