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公开(公告)号：US1991380A
公开(公告)日：1935-02-19
申请号：US68160733
申请日：1933-07-21
Applicant: SAMUEL DAWE GEORGE
Inventor： SAMUEL DAWE GEORGE
IPC: B29C35/00
CPC classification number: B29C73/30 , B29C73/10 , B29L2023/245 , Y10S44/902
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