Patents for Daniel Powers


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Patents for Daniel Powers
Patents 1 - 4 of 4
Picture	Number	Date	Patentee	Title
	124,089	Feb. 27, 1872	H.S. Shepardson	Improvement in bits
	191,815	Jun. 12, 1877	D. Powers	Bit-stock with gear-train multiplier
	212,110	Feb. 11, 1879	D. Powers, O. Peck	Improvement in bit-stocks
	219,872	Sep. 23, 1879	O. Peck	Improvement in bit-stocks