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公开(公告)号:CA468408A
公开(公告)日:1950-09-26
申请号:CA468408D
Applicant: SHELL DEV
Inventor: EVANS THEODORE W , SCHEIBLI JAMES B , BLACKBURN BILLEE O
公开(公告)号:CA468408A
公开(公告)日:1950-09-26
申请号:CA468408D
Applicant: SHELL DEV
Inventor: EVANS THEODORE W , SCHEIBLI JAMES B , BLACKBURN BILLEE O