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Patents for Wm. D. Andrews & Bro.
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
11,544Aug. 22, 1854W.D. AndrewsRotary Pumprotary pumps
36,885Nov. 11, 1862W.D. AndrewsOscillating Steam Engineoscillating steam engines
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