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Patents for E. C. Duffy
Patents 1 - 5 of 5
Picture	Number	Date	Patentee	Title
	435,789	Sep. 02, 1890	T.W. Bartholomew	Handle for Coffin Planes
	451,833	May 05, 1891	J. Mueller	Improved Spanner
	620,143	Feb. 28, 1899	C. Johnson	Wrench
	723,848	Mar. 31, 1903	H. Dreihaus	Tool Holder
	1,057,110	Mar. 25, 1913	N. Armstrong	Pipe Wrench

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