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公开(公告)号:US3285545A
公开(公告)日:1966-11-15
申请号:US43058065
申请日:1965-02-05
Applicant: BOLT WILLIAM C
Inventor: BOLT WILLIAM C
CPC classification number: B64D17/025 , B64D17/00
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公开(公告)号:US2957692A
公开(公告)日:1960-10-25
申请号:US71931458
申请日:1958-03-05
Applicant: BOLT WILLIAM C
Inventor: BOLT WILLIAM C
CPC classification number: A63B37/0001 , A63B43/02 , A63B47/007
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