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公开(公告)号：US1459714A
公开(公告)日：1923-06-26
申请号：US42844520
申请日：1920-12-06
Applicant: JAMES A PECORD
Inventor： BISHOP JOSEPH T
IPC: B63B22/08
CPC classification number: B63B22/08 , B63B2201/08 , B63B2205/08 , B63B2209/02
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