All Patents in class 403/340


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All Patents in class 403/340
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	107,978	Oct. 04, 1870	T.F. Taft	Improvement in shaft-couplings
	275,877	Apr. 17, 1883	C. Barnes	Shaft Coupling
	419,589	Jan. 14, 1890	W. Lewis	Coupling Shafting