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发明名称
摘要
申请公布号
JPS5233394(B1)
申请公布日期
1977.08.27
申请号
JP19710018496
申请日期
1971.03.29
申请人
发明人
分类号
B63B1/06;B63B21/22;B63B59/00;(IPC1-7):B63B1/06
主分类号
B63B1/06
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