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发明名称
Onderlosser met opdrijvende klep of kleppen voor het afsluiten van de beunbodem en een met de vrije rand van de of elke klep samenwerkend orgaan voor het boven de draaiingsas van die klep steunen en vergrendelen daarvan
摘要
申请公布号
BE578068(A2)
申请公布日期
1959.08.17
申请号
BE19590578068
申请日期
1959.04.24
申请人
N.V. AMSTERDAMSCHE BALLAST MAATSCHAPPIJ
发明人
JAN DE KONING
分类号
(IPC1-7):B66F
主分类号
(IPC1-7):B66F
代理机构
代理人
主权项
地址
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