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公开(公告)号：US1880965A
公开(公告)日：1932-10-04
申请号：US54549031
申请日：1931-06-19
Applicant: CELOTEX COMPANY
Inventor： LATHROP ELBERT C , IRVINE FERGUS A
IPC: B27K3/28
CPC classification number: B27K3/28
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