-
-
1983170
-
Patent number 1,983,170
-
Issue date Dec 4, 1934
-
F24 - HEATING RANGES VENTILATING
-
1813395
-
Patent number 1,813,395
-
Issue date Jul 7, 1931
-
F24 - HEATING RANGES VENTILATING
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1522898
-
Patent number 1,522,898
-
Issue date Jan 13, 1925
-
F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
-
1360980
-
Patent number 1,360,980
-
Issue date Nov 30, 1920
-
F22 - STEAM GENERATION
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1159783
-
Patent number 1,159,783
-
Issue date Nov 9, 1915
-
F24 - HEATING RANGES VENTILATING
-
1141247
-
Patent number 1,141,247
-
Issue date Jun 1, 1915
-
F24 - HEATING RANGES VENTILATING
-
1102718
-
Patent number 1,102,718
-
Issue date Jul 7, 1914
-
F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
-
1059378
-
Patent number 1,059,378
-
Issue date Apr 22, 1913
-
F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
-
941462
-
Patent number 941,462
-
Issue date Nov 30, 1909
-
F22 - STEAM GENERATION
-
935759
-
Patent number 935,759
-
Issue date Oct 5, 1909
-
F24 - HEATING RANGES VENTILATING
-
933413
-
Patent number 933,413
-
Issue date Sep 7, 1909
-
F28 - HEAT EXCHANGE IN GENERAL
-
865023
-
Patent number 865,023
-
Issue date Sep 3, 1907
-
F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
-
837844
-
Patent number 837,844
-
Issue date Dec 4, 1906
-
F22 - STEAM GENERATION
-
803027
-
Patent number 803,027
-
Issue date Oct 31, 1905
-
E21 - EARTH DRILLING MINING
-
772704
-
Patent number 772,704
-
Issue date Oct 18, 1904
-
F22 - STEAM GENERATION
-
687179
-
Patent number 687,179
-
Issue date Nov 19, 1901
-
F24 - HEATING RANGES VENTILATING
-
540407
-
Patent number 540,407
-
Issue date Jun 4, 1895
-
F24 - HEATING RANGES VENTILATING
-
487299
-
Patent number 487,299
-
Issue date Dec 6, 1892
-
F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
-
450072
-
Patent number 450,072
-
Issue date Apr 7, 1891
-
F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
-
423170
-
Patent number 423,170
-
Issue date Mar 11, 1890
-
F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
-
418187
-
Patent number 418,187
-
Issue date Dec 31, 1889
-
F22 - STEAM GENERATION
-
382660
-
Patent number 382,660
-
Issue date May 8, 1888
-
F24 - HEATING RANGES VENTILATING