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All Patents of Type: steam safety valves
Patents 1 - 12 of 12
First set of recordsLast set of records
4,267XNov. 16, 1825W.S. GillelttAlarm or reversed safety valvesteam safety valves
6,021XJun. 08, 1830T. EwbankPreventing explosion of steam boilers by detectorsteam safety valves
FX-6,157Oct. 01, 1830A.B. QuimbyPreventing explosion of steamboat boilerssteam safety valves
6,736XAug. 27, 1831T. Ewbank,Hydrostatic safety-valve for steam boilerssteam safety valves
6,915XJan. 30, 1832J.C. DouglasPiston safety valvesteam safety valves
23,807Apr. 26, 1859H.H. EvartsSteam-valvesteam safety valves
59,764Nov. 20, 1866C.M. FarrarImprovement in Lock-Up Safety Valvesteam safety valves
79,021Jun. 16, 1868J. SoutherSteam Safety Valvesteam safety valves
81,878Sep. 08, 1868G.H. Clemens, E. ClemensImprovement in steam safety-valvessteam safety valves
85,792Jan. 12, 1869G.H. ClemensImprovement in steam safety-valvessteam safety valves
113,517Apr. 11, 1871B. HollySafety Valvesteam safety valves
270,744Jan. 16, 1883W.A. ClarkeCut-off valvesteam safety valves
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