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发明名称
摘要
申请公布号
DD123658(A1)
申请公布日期
1977.01.12
申请号
DD19760190748
申请日期
1976.01.09
申请人
发明人
分类号
B63B35/79;(IPC1-7):B63B15/02
主分类号
B63B35/79
代理机构
代理人
主权项
地址
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