Donald C. Symonds

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Grand Ledge, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Pool heating device system
- Patent number 8,863,738
- Issue date Oct 21, 2014
- Donald C. Symonds
- E04 - BUILDING

Patents Applicationslast 30 patents

Information Patent Application
POOL HEATING DEVICE SYSTEM
- Publication number 20130092151
- Publication date Apr 18, 2013
- Donald C. Symonds
- E04 - BUILDING