-
Well packer
-
Patent number 5,086,839
-
Issue date Feb 11, 1992
-
Otis Engineering Corporation
-
John R. Setterberg
-
E21 - EARTH DRILLING MINING
-
Heat exchanger core
-
Patent number 5,040,596
-
Issue date Aug 20, 1991
-
Mitsubishi Aluminum Kabushiki Kaisha
-
Kazuo Terasaki
-
F28 - HEAT EXCHANGE IN GENERAL
-
Heat exchanger
-
Patent number 4,915,164
-
Issue date Apr 10, 1990
-
William H. Harper
-
F28 - HEAT EXCHANGE IN GENERAL
-
Heat exchanger
-
Patent number 4,497,365
-
Issue date Feb 5, 1985
-
John Boyer
-
F28 - HEAT EXCHANGE IN GENERAL
-
3834458
-
Patent number 3,834,458
-
Issue date Sep 10, 1974
-
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
-
3757856
-
Patent number 3,757,856
-
Issue date Sep 11, 1973
-
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
-
2911199
-
Patent number 2,911,199
-
Issue date Nov 3, 1959
-
F28 - HEAT EXCHANGE IN GENERAL
-
2650801
-
Patent number 2,650,801
-
Issue date Sep 1, 1953
-
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
-
1979859
-
Patent number 1,979,859
-
Issue date Nov 6, 1934
-
F28 - HEAT EXCHANGE IN GENERAL
-
1870669
-
Patent number 1,870,669
-
Issue date Aug 9, 1932
-
F22 - STEAM GENERATION
-
1870670
-
Patent number 1,870,670
-
Issue date Aug 9, 1932
-
F22 - STEAM GENERATION
-
1809654
-
Patent number 1,809,654
-
Issue date Jun 9, 1931
-
B60 - VEHICLES IN GENERAL
-
1802669
-
Patent number 1,802,669
-
Issue date Apr 28, 1931
-
B60 - VEHICLES IN GENERAL
-
29332
-
Patent number 29,332
-
Issue date Jul 24, 1860
-
A44 - HABERDASHERY JEWELLERY