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发明名称
摘要
申请公布号
JPS5216635(B2)
申请公布日期
1977.05.10
申请号
JP19720120199
申请日期
1972.11.29
申请人
发明人
分类号
B63B9/00;B63B21/00
主分类号
B63B9/00
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代理人
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