-
-
-
-
-
3860064
-
Patent number 3,860,064
-
Issue date Jan 14, 1975
-
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
-
2846196
-
Patent number 2,846,196
-
Issue date Aug 5, 1958
-
F28 - HEAT EXCHANGE IN GENERAL
-
2764391
-
Patent number 2,764,391
-
Issue date Sep 25, 1956
-
F24 - HEATING RANGES VENTILATING
-
2160980
-
Patent number 2,160,980
-
Issue date Jun 6, 1939
-
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
-
1992795
-
Patent number 1,992,795
-
Issue date Feb 26, 1935
-
F28 - HEAT EXCHANGE IN GENERAL
-
1988224
-
Patent number 1,988,224
-
Issue date Jan 15, 1935
-
F28 - HEAT EXCHANGE IN GENERAL
-
1960510
-
Patent number 1,960,510
-
Issue date May 29, 1934
-
F28 - HEAT EXCHANGE IN GENERAL
-
1911522
-
Patent number 1,911,522
-
Issue date May 30, 1933
-
F28 - HEAT EXCHANGE IN GENERAL
-
1883057
-
Patent number 1,883,057
-
Issue date Oct 18, 1932
-
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
-
1881776
-
Patent number 1,881,776
-
Issue date Oct 11, 1932
-
F28 - HEAT EXCHANGE IN GENERAL
-
1766250
-
Patent number 1,766,250
-
Issue date Jun 24, 1930
-
F28 - HEAT EXCHANGE IN GENERAL
-
888773
-
Patent number 888,773
-
Issue date May 26, 1908
-
F28 - HEAT EXCHANGE IN GENERAL
-
374094
-
Patent number 374,094
-
Issue date Nov 29, 1887
-
F24 - HEATING RANGES VENTILATING