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公开(公告)号：US2159303A
公开(公告)日：1939-05-23
申请号：US12787237
申请日：1937-02-26
Applicant: SHELL DEV
Inventor： ISRAEL WATERMAN HEIN , VLODROP CORNELUS VAN
CPC classification number: C13B30/002 , B01D1/22 , B01D1/26 , B01D3/10 , B01D5/0036 , C13B25/001
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