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All Patents in class 73/737
Patents 1 - 4 of 4
First set of recordsLast set of records
23,032Feb. 22, 1859T.W. LaneSteam-pressure gagesteam pressure gauges
RE5,320Mar. 11, 1873T.W. LaneImprovement in steam-gagessteam pressure gauges
145,726Dec. 23, 1873G.H. CrosbyImprovement in pressure-gagessteam pressure gauges
549,700Nov. 12, 1895C.B. Bosworth, J.H. MillettSteam-gagesteam pressure gauges
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