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U.S. Department of Energy
Office of Scientific and Technical Information

Recovery of bitumen from tar sands. [water mixed with tar sand in 2 zones; temperature held at 50 to 90/sup 0/F]

Patent ·
OSTI ID:7262874
None
Assignee:
Esso Research and Engineering Co.
Patent Number(s):
US 3139397
OSTI ID:
7262874
Country of Publication:
United States
Language:
English