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Eastman Oil Well Survey Co

Eastman Oi

Active Patents

0

Total Holdings

4

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US2649715A	Temperature measuring and indicating apparatus	Expired / Lapsed	1947-05-08	1953-08-25	0	Details
US2631270A	Method of and apparatus for the measurement of distance or …	Expired / Lapsed	1947-05-19	1953-03-10	0	Details
US2489566A	Core orienting apparatus	Expired / Lapsed	1945-11-27	1949-11-29	0	Details
US2317632A	Means for surveying well bores	Expired / Lapsed	1939-07-20	1943-04-27	0	Details