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公开(公告)号：US2537445A
公开(公告)日：1951-01-09
申请号：US6451448
申请日：1948-12-10
Applicant: COUTURE JOSEPH E
Inventor： COUTURE JOSEPH E
IPC: B28D1/02
CPC classification number: B28D1/025 , Y10S29/093
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