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公开(公告)号:CA543475A
公开(公告)日:1957-07-16
申请号:CA543475D
Applicant: SAXTON STUART A , RIDLEY JOHN C
Inventor: SAXTON STUART A , RIDLEY JOHN C
公开(公告)号:CA543475A
公开(公告)日:1957-07-16
申请号:CA543475D
Applicant: SAXTON STUART A , RIDLEY JOHN C
Inventor: SAXTON STUART A , RIDLEY JOHN C