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公开(公告)号：US2868688A
公开(公告)日：1959-01-13
申请号：US38751253
申请日：1953-10-21
Applicant: SHELL DEV
Inventor： BENESI HANS A , PEI SUN YUN , LOEFFLER ERWIN S , DETLING KENNETH D
IPC: A01N25/08
CPC classification number: A01N25/08
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