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公开(公告)号：US2439179A
公开(公告)日：1948-04-06
申请号：US60614145
申请日：1945-07-20
Applicant: IND PATENTS CORP
Inventor： MCGINNIS ALBERT S , HARRY BERRY
IPC: D01B1/02
CPC classification number: D01B1/02
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