David J. Piotrowski

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Larchmont, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Adjustable foot equipment
- Patent number 5,992,861
- Issue date Nov 30, 1999
- DP Systems LLC
- David J. Piotrowski
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Grant
Adjustable foot equipment
- Patent number 5,803,467
- Issue date Sep 8, 1998
- DP Systems LLC
- David J. Piotrowski
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT