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公开(公告)号：US2807635A
公开(公告)日：1957-09-24
申请号：US41874454
申请日：1954-03-25
Applicant: SHELL DEV
Inventor： HEYME BREEDERVELD , ISRAEL WATERMAN HEIN
IPC: C07F7/02
CPC classification number: C07F7/025
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