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Patents for National Steam Gauge Co.
Patents 1 - 5 of 5
First set of recordsLast set of records
NumberDatePatenteeTitleType
18,526Oct. 27, 1857E.G. AllenSteam-pressure gagesteam pressure gauges
23,032Feb. 22, 1859T.W. LaneSteam-pressure gagesteam pressure gauges
26,152Nov. 22, 1859E.G. AllenCombination steam-gagesteam pressure gauges
26,871Jan. 17, 1860E.G. AllenSteam-gagesteam pressure gauges
RE5,320Mar. 11, 1873T.W. LaneImprovement in steam-gagessteam pressure gauges
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