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3747849
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Information
Patent Grant
3747849
References
Source
Patent Number
3,747,849
Date Filed
Not available
Date Issued
Tuesday, July 24, 1973
50 years ago
CPC
F24D19/1006 - for water heating systems
G05D23/1931 - to control the temperature of one space
G05D23/2453 - using discharge tubes
US Classifications
236 - Automatic temperature and humidity regulation
318 - Electricity: motive power systems
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