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All Patents in class 73/715
Patents 1 - 6 of 6
First set of recordsLast set of records
NumberDatePatenteeTitleType
18,526Oct. 27, 1857E.G. AllenSteam-pressure gagesteam pressure gauges
26,871Jan. 17, 1860E.G. AllenSteam-gagesteam pressure gauges
101,832Apr. 12, 1870H. ChwatalImprovement in pressure-gaugessteam pressure gauges
603,391May 03, 1898F.L. WolfePressure-recordersteam pressure gauges
1,258,426Mar. 05, 1918W.B. MackintoshGagemeasurement gauges
1,265,676May 07, 1918W. KlumpGagegauges
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