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发明名称
摘要
申请公布号
JPS48717(Y1)
申请公布日期
1973.01.09
申请号
JP19680005881U
申请日期
1968.01.29
申请人
发明人
分类号
B63B35/74;B63C9/08;(IPC1-7):B63C9/08
主分类号
B63B35/74
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代理人
主权项
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