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公开(公告)号:CA484378A
公开(公告)日:1952-06-24
申请号:CA484378D
Applicant: SHELL DEV
Inventor: HATTON JOHN A , PEERY NORMAN E , CLEVELAND DONALD L
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公开(公告)号:CA484378A
公开(公告)日:1952-06-24
申请号:CA484378D
Applicant: SHELL DEV
Inventor: HATTON JOHN A , PEERY NORMAN E , CLEVELAND DONALD L