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John Harold Keyes
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Nederland, CO, US
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last 30 patents
Information
Patent Grant
Flywheel energy accumulator
Patent number
4,208,921
Issue date
Jun 24, 1980
John H. Keyes
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Low energy consumption vehicle propelled by thermal engine
Patent number
4,131,171
Issue date
Dec 26, 1978
John H. Keyes
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Solar heat collecting units
Patent number
4,088,117
Issue date
May 9, 1978
International Solarthermics Corporation
John H. Keyes
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Method and apparatus for collecting, storing and transmitting solar...
Patent number
4,088,266
Issue date
May 9, 1978
International Solarthermics Corporation
John H. Keyes
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Method and apparatus for collecting, storing and transmitting solar...
Patent number
3,987,786
Issue date
Oct 26, 1976
John Harold Keyes
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Method of collecting and storing solar heat
Patent number
3,946,721
Issue date
Mar 30, 1976
International Solarthermics Corporation
John Harold Keyes
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Method of heating a building structure with solar heat
Patent number
3,946,944
Issue date
Mar 30, 1976
International Solarthermics Corporation
John Harold Keyes
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Solar heat collector
Patent number
3,946,720
Issue date
Mar 30, 1976
International Solarthermics Corporation
John Harold Keyes
F24 - HEATING RANGES VENTILATING