William J. D. Escher

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St. Johns, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Multimode solar energy collector and process
- Patent number 4,210,463
- Issue date Jul 1, 1980
- William J. D. Escher
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Multimode solar energy collector and process
- Patent number 4,136,673
- Issue date Jan 30, 1979
- William J. D. Escher
- F24 - HEATING RANGES VENTILATING