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Patents for Emil Wohlers
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
234,157Nov. 09, 1880E. WohlersInjectorwater injectors
234,158Nov. 09, 1880E. WohlersInjectorfeedwater apparatus
276,319Apr. 24, 1883E. WohlersInjectorwater injectors
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