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Patents for S. B. Spear
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	139,124	May 20, 1873	W.H. Dobson	Improvement in saw-setting machines
	152,370	Jun. 23, 1874	J.L. Haven	Improvement in bedsteads
	152,371	Jun. 23, 1874	J.L. Haven, G.H. Knight	Improvement in furniture-fastenings

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