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发明名称
摘要
申请公布号
JPS5228897(U)
申请公布日期
1977.02.28
申请号
JP19750115169U
申请日期
1975.08.21
申请人
发明人
分类号
B63B39/00;B63B35/14;B63B43/02;B63B43/08;B63B43/14;(IPC1-7):B63B39/00
主分类号
B63B39/00
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