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公开(公告)号：US2412506A
公开(公告)日：1946-12-10
申请号：US59138445
申请日：1945-05-01
Applicant: MARION MFG COMPANY
Inventor： GREENE OREN W , TWITTY ROBERT W , RICHIE THERMAN L
IPC: D01G13/00
CPC classification number: D01G13/00 , D01G23/045
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