-
公开(公告)号：US2556849A
公开(公告)日：1951-06-12
申请号：US1803848
申请日：1948-03-30
Applicant: STANDARD OIL DEV CO
Inventor： NOLLEY JOHN P , CANNON GEORGE E
CPC classification number: E21B31/06
-
公开(公告)号：CA499065A
公开(公告)日：1954-01-05
申请号：CA499065D
Applicant: STANDARD OIL DEV CO
Inventor： BIELSTEIN WALTER J , NOLLEY JOHN P
-
Search Results
2
records
(took 0.023 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
