All Patents in class 242/419.4


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