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All Patents of Type: steam heating
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
CA-8,720Apr. 30, 1878B. HollySysteme de Chauffage a la Vapeursteam heating
CA-9,002Jul. 10, 1878B. HollyAppareil Pour Utilizer la Vapeur Dans le Chauffagesteam heating
CA-11,233May 10, 1880B. HollyPerfectionnements Aux Caloriferessteam heating
457,280Aug. 04, 1891A. KellyTemperature Regulatorsteam heating
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