Stephen M. Wolfhope

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Derry, NH, US

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Patents Grantslast 30 patents

Information Patent Grant
Automatic water shut-off valve
- Patent number 6,003,536
- Issue date Dec 21, 1999
- Watts Investment Company
- Paul Polverari
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...