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Method of plugging perforations in casings
US 3,399,726 A
Filed
: 05/23/1966
Issued
: 09/03/1968
Est. Priority Date
: 05/23/1966
Status: Expired due to Term
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Current Assignee
Francis M. Smith
,
James W. Jennings
,
Martin H. Harris
Original Assignee
Francis M. Smith
,
James W. Jennings
,
Martin H. Harris
Inventors
Harris, Martin H.
,
Jennings, James W.
,
Smith, Francis M.
Application Number
US04/552,163
Time in Patent Office
834 Days
Field of Search
US Class Current
166/284
CPC Class Codes
E21B 33/134
Bridging plugs
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