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公开(公告)号：US2145858A
公开(公告)日：1939-02-07
申请号：US69903533
申请日：1933-11-21
Applicant: BORHO ERNEST R
Inventor： BORHO ERNEST R
IPC: D03D15/00
CPC classification number: D03D15/00 , D03D19/00 , D03D2700/0133 , D10B2201/00 , D10B2201/02
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