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发明名称
摘要
申请公布号
JPH02139196(U)
申请公布日期
1990.11.20
申请号
JP19890048140U
申请日期
1989.04.24
申请人
发明人
分类号
B63B21/04;B63B21/50;(IPC1-7):B63B21/04
主分类号
B63B21/04
代理机构
代理人
主权项
地址
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