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公开(公告)号:US3351683A
公开(公告)日:1967-11-07
申请号:US42885465
申请日:1965-01-28
Applicant: UNION CARBIDE CORP
Inventor: CHISUNG WU , WELCH FRANK J
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公开(公告)号:US3341632A
公开(公告)日:1967-09-12
申请号:US37752564
申请日:1964-06-24
Applicant: UNION CARBIDE CORP
Inventor: CHISUNG WU
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