Patents for William E. Copenhaver


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Patents for William E. Copenhaver
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
692,243	Feb. 04, 1902	W.E. Copenhaver	Mill	grinding mills
757,097	Apr. 12, 1904	W.E. Copenhaver, D.L. Adelsperger, W.C. Deards	Grinding-Mill	grinding mills