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发明名称
摘要
申请公布号
FR2053748(A5)
申请公布日期
1971.04.16
申请号
FR19690024275
申请日期
1969.07.17
申请人
NIPPON KOKAN KK
发明人
分类号
B63B9/00
主分类号
B63B9/00
代理机构
代理人
主权项
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