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Patents for Gibson F. Howard
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	156,066	Oct. 20, 1874	E. Schlenker	Improvement in vises
	162,194	Apr. 20, 1875	E. Schlenker	Improvement in bolt-threading machines
	166,730	Aug. 17, 1875	E. Schlenker	Improvement in hoisting-machines or elevators

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