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Patents for George C. Cottrell
Patents 1 - 2 of 2
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PictureNumberDatePatenteeTitle
617,473Jan. 10, 1899G.C. Cottrell, G.T. ParsleyHand-powered timber mortising machine
CA-66,215Feb. 14, 1900G.C. Cottrell, G.T. ParsleyBoring and mortising machine
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