Patents for Edwin S. Piper


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Patents for Edwin S. Piper
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	65,598	Jun. 11, 1867	E.S. Piper	Improvement in hardening saws
	126,232	Apr. 30, 1872	E.S. Piper	Improvement in machines for making saw-handles
	556,554	Mar. 17, 1896	E.S. Piper	Cork Extractor