Marvin M. Graham

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Westminster, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Snap acting thermostatic fluid valve and electrical switch coupled...
- Patent number 4,422,844
- Issue date Dec 27, 1983
- Robertshaw Controls Company
- Marvin M. Graham
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information Patent Grant
Gas burner control mechanism
- Patent number 4,285,662
- Issue date Aug 25, 1981
- Robertshaw Controls Company
- Jay R. Katchka
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES