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Patents for Arthur L. Bowker
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
549,700Nov. 12, 1895J.H. Millett, C.B. BosworthSteam-gagesteam pressure gauges
603,391May 03, 1898F.L. WolfePressure-recordersteam pressure gauges
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