Heater for oil well tubing
United States Patent 2561249
US Patent References:
Electrical heating
- - 1733250
Conductor for oil-well heaters
- - 1764213
Method and apparatus for handling materials
- - 1994838
Electrothermic oil well processor
- - 2362680
Electrical heating
- - 1733250
Conductor for oil-well heaters
- - 1764213
Method and apparatus for handling materials
- - 1994838
Electrothermic oil well processor
- - 2362680
Inventors:
Tomlinson, Darrell E.
Publication Date:
07/17/1951
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Assignee:
Edward, Tomlinson R.
Primary Class:
Other Classes:
392/478, 174/136, 166/60
International Classes:
E21B36/04; E21B36/00