Electric head bolt heater for internal-combustion engines
United States Patent 2611066
US Patent References:
Electric immersion heater
- - 1455246

Electric heater
- - 1702326

Bolt heater
- - 2176601

Immersion heater
- - 2457028

Electric internal-combustion engine head bolt heater
- - 2487326


Inventors:
Freeman, Andrew L.
Publication Date:
09/16/1952
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Assignee:
Freeman, Andrew L.
Primary Class:
219/523
Other Classes:
219/522, 219/526, 411/395, 219/541, 123/142.50E
International Classes:
F23Q7/00; H05B3/06
US Patent References:
2551770Combined oil measuring gauge and heater for motor vehicles
Foreign References:
GB191314562A