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公开(公告)号:CA547663A
公开(公告)日:1957-10-15
申请号:CA547663D
Applicant: SHELL DEV
Inventor: SMITH WILLIAM C , MCMURRAY CHARLES A , HOLMES WALTER L
公开(公告)号:CA547663A
公开(公告)日:1957-10-15
申请号:CA547663D
Applicant: SHELL DEV
Inventor: SMITH WILLIAM C , MCMURRAY CHARLES A , HOLMES WALTER L