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Patents for E. Wackerhagen
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
64,605May 07, 1867S. WheelerImprovement in permutation lockslocks
76,680Apr. 14, 1868S. WheelerImprovement in pulleys and gearing for machineryindustrial machine pulleys and belt drive mechanisms
145,771Dec. 23, 1873S. WheelerImprovement in ore-washersore processing apparatus
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