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Patents for Henry E. Warren
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,114,077Oct. 20, 1914H.E. WarrenHigh-pressure prime moverwater power
1,244,664Oct. 30, 1917H.E. WarrenFluid-operated lathemetal lathes
1,282,152Oct. 22, 1918H.E. WarrenFluid-operated lathemetal lathes
1,334,335Mar. 23, 1920W.M. Wheildon, H.E. WarrenApparatus for treating metal objectsmetal lathes
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