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公开(公告)号：DE889889C
公开(公告)日：1953-09-14
申请号：DEST000562
申请日：1950-02-03
Applicant: STANDARD OIL DEV CO
Inventor： JUN ERNEST A EPPS , HAWES TRUMAN P , GIRAITIS ALBERT P , MOTTERN HENRY O , ARCHIBALD FRANCIS M
IPC: C01B17/92
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