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12.
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公开(公告)号:CA586897A
公开(公告)日:1959-11-10
申请号:CA586897D
Applicant: SHELL DEV
Inventor: FISCHER RUDOLPH F , MIKA THOMAS F
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公开(公告)号:CA576100A
公开(公告)日:1959-05-19
申请号:CA576100D
Applicant: SHELL DEV
Inventor: MIKA THOMAS F , TESS ROY W H
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