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公开(公告)号：US1502055A
公开(公告)日：1924-07-22
申请号：US50052621
申请日：1921-09-14
Applicant: ATHANASIOS PAPANASTASIOU
Inventor： ATHANASIOS PAPANASTASIOU
IPC: B63B22/06
CPC classification number: B63B22/06 , B63B2201/08 , B63B2203/02
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