Paul D. Spies

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York, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for covering openings contiguous to a swimming pool
- Patent number 5,560,178
- Issue date Oct 1, 1996
- Quaker Plastic Corporation
- Donald E. Dahowski
- E04 - BUILDING
Information Patent Grant
Cover for openings contiguous to a swimming pool
- Patent number 5,417,016
- Issue date May 23, 1995
- Quaker Plastic Corporation
- Donald E. Dahowski
- E04 - BUILDING