Patents for Enos S. Costa


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Patents for Enos S. Costa
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	768,113	Aug. 23, 1904	E.S. Costa	Self Tightening Tool Holder
	843,931	Feb. 12, 1907	E.S. Costa	Self Tightening Tool Holder and Tool
	878,776	Feb. 11, 1908	E.S. Costa	Self Tightening Bushing Tool Holder and Tools