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All Patents in class 92/100
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
7,816XNov. 19, 1833B. LaphamForcing pumppumps
19,834Apr. 06, 1858W. Douglas, B. DouglasPortable pumphousehold hand pumps
2,298,253Oct. 06, 1942W.E. Cowley, E.J. DillmanValvevalves
2,306,768Dec. 29, 1942D.D. WileControl Devicerefrigeration apparatus
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