IMMERSION HEATER
United States Patent 3536893
US Patent References:
/1027970.html
- - 1027970

/1178777.html
- - 1178777

Heating device
- - 1690986

Electrical heating device
- - 1820842

Water heater
- - 2230085


Inventors:
Cranley, Vincent J.
Publication Date:
10/27/1970
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Assignee:
Vincent, Cranley J.
Primary Class:
219/523
Other Classes:
392/443, 219/441, 392/448, 219/439, 392/497, 392/451, 219/437, 219/530
International Classes:
H05B3/80; H05B3/78; H05B3/06
US Patent References:
2297030Electrically operated tank heater
2785274Hot water heater
2789201Immersion heaters for bathroom tanks
2811629Aquarium heating and indicating device
3440109STORAGE BATTERY WITH THERMOSTATICALLY CONTROLLED ELECTRIC HEATERS
Foreign References:
CH179716A




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