OIL WELL PRODUCTION SYSTEM
United States Patent 3548939

Inventors:
Bennett, John D.
Publication Date:
12/22/1970
View Patent Images:
Export Citation:
Assignee:
SUN OIL CO
Primary Class:
Other Classes:
96/209, 95/261
International Classes:
E21B43/12; E21B43/34; E21B43/12




<- Previous Patent (IN SITU METHOD OF PR...)   |   Next Patent (METHOD FOR RECOVERY ...) ->