All Patents in class 409/284


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All Patents in class 409/284
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	275,393	Apr. 10, 1883	L.J. Knowles	Machine for Forming Key-Seats in Hubs of Gears, &c.
	1,434,711	Nov. 07, 1922	F.J. Lapointe	Manually-operated broaching machine