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Patents for Arthur W. Carlsen
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	1,199,737	Sep. 26, 1916	F.H. Ayer	Ratchet Mechanism
	1,199,738	Sep. 26, 1916	F.H. Ayer	Reversible Clutch Mechanism

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