Robert F. Shaftner

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Bowling Green, KY, US

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Patents Grantslast 30 patents

Information Patent Grant
Wick heater
- Patent number D276260
- Issue date Nov 6, 1984
- Koehring Company
- Robert F. Shaftner
- D23 - Environmental heating and cooling
Information Patent Grant
Wick heaters
- Patent number 4,474,166
- Issue date Oct 2, 1984
- Koehring Company
- Robert F. Shaftner
- F24 - HEATING RANGES VENTILATING