All Patents in class 242/419.4


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All Patents in class 242/419.4
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	1,351,230	Aug. 31, 1920	P.E. Chapman	Armature and coil winding machine
	1,679,178	Jul. 31, 1928	N.H. Shillman	Tape Casing
	2,320,264	May 25, 1943	P.E. Chapman, Sr.	Wire tensioning device