William F. Horvath

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Drexel Hill, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of making a rolled roof vent
- Patent number 5,902,432
- Issue date May 11, 1999
- Benjamin Obdyke, Inc.
- Michael S. Coulton
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Rolled roof vent and method of making same
- Patent number 5,673,521
- Issue date Oct 7, 1997
- Benjamin Obdyke Incorporated
- Michael S. Coulton
- F24 - HEATING RANGES VENTILATING