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公开(公告)号：US1666883A
公开(公告)日：1928-04-17
申请号：US19400027
申请日：1927-05-25
Applicant: LAMBERT HELEN H
Inventor： LAMBERT HELEN H
IPC: B29D30/06
CPC classification number: B29D30/0606 , B29D2030/061 , Y10T152/10126
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