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公开(公告)号:CA443873A
公开(公告)日:1947-08-26
申请号:CA443873D
Applicant: SHELL DEV
Inventor: MARPLE KENNETH E , EVANS THEODORE W , BORDERS BERT
公开(公告)号:CA443873A
公开(公告)日:1947-08-26
申请号:CA443873D
Applicant: SHELL DEV
Inventor: MARPLE KENNETH E , EVANS THEODORE W , BORDERS BERT