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公开(公告)号:CA535621A
公开(公告)日:1957-01-08
申请号:CA535621D
Applicant: SHELL DEV
Inventor: TALLEY SAMUEL K , KOOT JOHN T , CROIT ROBERT A
公开(公告)号:CA535621A
公开(公告)日:1957-01-08
申请号:CA535621D
Applicant: SHELL DEV
Inventor: TALLEY SAMUEL K , KOOT JOHN T , CROIT ROBERT A