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APPARATUS FOR HEATING AND RECOVERING UNDERGROUND OIL
US 3,420,301 A
Filed
: 12/05/1966
Issued
: 01/07/1969
Est. Priority Date
: 12/05/1966
Status: Expired due to Term
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Current Assignee
Metairie John M Mamoulides
,
Orey L. Riley
Original Assignee
Metairie John M Mamoulides
,
Orey L. Riley
Inventors
Riley, Orey L.
,
METAIRIE JOHN M MAMOULIDES
Application Number
US04/599,109
Time in Patent Office
764 Days
Field of Search
US Class Current
166/60
CPC Class Codes
E21B 36/006
Combined heating and pumpin...
E21B 43/2401
by means of electricity
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