Plural bonded conduit end portions

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Patents Grantslast 30 patents

Information Patent Grant
Clover heat exchanger core
- Patent number 4,393,926
- Issue date Jul 19, 1983
- Gary H. Appel
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
3610330
- Patent number 3,610,330
- Issue date Oct 5, 1971
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
3438434
- Patent number 3,438,434
- Issue date Apr 15, 1969
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
3406752
- Patent number 3,406,752
- Issue date Oct 22, 1968
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
1995768
- Patent number 1,995,768
- Issue date Mar 26, 1935
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
1816757
- Patent number 1,816,757
- Issue date Jul 28, 1931
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information Patent Grant
1724885
- Patent number 1,724,885
- Issue date Aug 13, 1929
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
1506121
- Patent number 1,506,121
- Issue date Aug 26, 1924
- F24 - HEATING RANGES VENTILATING