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公开(公告)号：US3215028A
公开(公告)日：1965-11-02
申请号：US82689359
申请日：1959-07-09
Applicant: PHILLIPS PETROLEUM CO
Inventor： PITCHFORD ARMIN C , MCSPADDEN HUGH J
IPC: C06B45/12
CPC classification number: C06B45/12
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