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公开(公告)号：US2117818A
公开(公告)日：1938-05-17
申请号：US9422636
申请日：1936-08-04
Applicant: HEINRICH OECHSLIN
Inventor： HEINRICH OECHSLIN
IPC: D07B1/08
CPC classification number: D07B1/08 , D07B1/068 , D07B2201/2002 , D07B2201/2004
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