Title:
Well heater
United States Patent 2666487
US Patent References:
/0573142.html
- - 0573142
/1291302.html
- - 1291302
Oil extracting device
- - 1820291
Well heater
- - 2500513
Oil well furnace
- - 2506853
/0573142.html
- - 0573142
/1291302.html
- - 1291302
Oil extracting device
- - 1820291
Well heater
- - 2500513
Oil well furnace
- - 2506853
Inventors:
Bowman, Hyman D.
Publication Date:
01/19/1954
View Patent Images:
Export Citation:
Assignee:
Bowman, Hyman D.
Primary Class:
Other Classes:
392/301, 166/66.400, 166/177.700
International Classes:
E21B36/04; E21B36/00