All Patents in class 200/417


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All Patents in class 200/417
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	1,245,860	Nov. 06, 1917	S.D. Black, A.G. Decker	Electrically-driven tool
	1,492,095	Apr. 29, 1924	S.D. Black, A.G. Decker	Electrically-driven tool
	1,529,910	Mar. 17, 1925	R.A. Norling	Grip-handle switch for electric drills