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Patents for William Henry Essery
Patents 1 - 3 of 3
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
CA-7,215Mar. 14, 1877W.H. EsseryImprovement in loose pulleys
CA-14,406Mar. 13, 1882W.H. Essery, S. WebsterImprovement in loose pulleys
CA-15,738Nov. 06, 1882W.H. EsseryImprovements on wood working machinery
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