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Fracturing formations at selected elevations
US 2,838,117 A
Filed
: 05/22/1953
Issued
: 06/10/1958
Est. Priority Date
: 05/22/1953
Status: Expired due to Term
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Current Assignee
Joseph B. Clark Jr
,
Karl Dyk
Original Assignee
Joseph B. Clark Jr
,
Karl Dyk
Inventors
Clark, Joseph B. Jr.
,
KARL DYK
Application Number
US03/356,881
Time in Patent Office
1,845 Days
Field of Search
US Class Current
166/283
CPC Class Codes
E21B 43/26
by forming crevices or frac...
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