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公开(公告)号：US2863891A
公开(公告)日：1958-12-09
申请号：US49533255
申请日：1955-03-18
Applicant: LITTLE INC A
Inventor： GRANCHELLI FELIX E , WALKER JR GEORGE B
CPC classification number: C07F11/005 , C07F9/005 , C23F11/10
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