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Patents for J. F. Callan
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	20,344	May 25, 1858	N.J. Glover	Machine for turning irregular forms
	22,073	Nov. 16, 1858	A. Gregory	Weight/Balance Shifting Hammer
	88,002	Mar. 23, 1869	G. Atkins	Improvement in the Manufacturing of Sheet Iron

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