Title:
Method and apparatus for repairing casing
United States Patent 3167122


Inventors:
Lang, Harold M.
Application Number:
US19249262A
Publication Date:
01/26/1965
Filing Date:
05/04/1962
Assignee:
PAN AMERICAN PETROLEUM CORP
Primary Class:
Other Classes:
29/402.16, 29/421.2, 29/DIG.34, 72/56, 138/97, 166/63, 166/207, 166/299
International Classes:
E21B29/10
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