Petro-Chem Development Co., Inc.

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Tulsa, OK, US

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Patents Grantslast 30 patents

Information Patent Grant
Adjustable louver system for radiant heat transfer control in a dir...
- Patent number 6,095,097
- Issue date Aug 1, 2000
- Petro-Chem Development Co., Inc.
- William C. Gibson
- F24 - HEATING RANGES VENTILATING