Patents for Ervin Samuel Mummert


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Patents for Ervin Samuel Mummert
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	793,796	Jul. 04, 1905	E.S. Mummert	Saw Attachment for Bench Vise
	890,599	Jun. 16, 1908	J.O. Dixon, E.S. Mummert	Screw-threading machine
	GB-190,812,513	Jan. 07, 1909	J.O. Dixon, E.S. Mummert	Improvements in screw-threading machines