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公开(公告)号：US2347925A
公开(公告)日：1944-05-02
申请号：US40098541
申请日：1941-07-03
Applicant: FILM O SEAL COMPANY
Inventor： NOEL OWENS
IPC: B29C73/16
CPC classification number: B29D30/0685 , B29C73/163 , B29D2030/0698 , B29L2030/00
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