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All Patents in class 415/124
Patents 1 - 7 of 7
First set of recordsLast set of records
107,665Sep. 27, 1870W.S. ColwellImprovement in blowerswaste collection mechanisms
148,652Mar. 17, 1874D.C. BaxterForgesblacksmith
149,368Apr. 07, 1874L. Andrews, IIRotary Blowersblacksmith
389,305Sep. 11, 1888W. T.KelloggPortable forgeforging machines
804,860Nov. 21, 1905H.B. KeiperRotary blowerforge blowers
820,431May 15, 1906F.X. MüllerFan Blowerblacksmith
869,247Oct. 29, 1907H.B. KeiperCombined motor and hand operated rotary blowerforge blowers
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