Title:
Drill stem tester
United States Patent 2813587


Inventors:
Mounce, Whitman D.
Application Number:
US49994955A
Publication Date:
11/19/1957
Filing Date:
04/07/1955
Assignee:
EXXON RESEARCH ENGINEERING CO
Primary Class:
Other Classes:
166/187, 166/243, 166/318, 166/325, 175/236, 175/317, 175/325.2
International Classes:
E21B49/08
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