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公开(公告)号：US3413008A
公开(公告)日：1968-11-26
申请号：US42814765
申请日：1965-01-26
Applicant: SEALOL
Inventor： FREDERIC GREINER HAROLD
CPC classification number: B63H23/36 , F16J15/322 , F16J15/3224 , F16J15/3256
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