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1.发明授权
公开(公告)号：US1428096A
公开(公告)日：1922-09-05
申请号：US45443821
申请日：1921-03-22
Applicant: JOSEPH INGRAM SAMUEL
Inventor： JOSEPH INGRAM SAMUEL
IPC: B29D99/00
CPC classification number: B29D99/0096 , B29L2031/565
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