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发明名称
SPOSOB I URZADZENIE DO OZNAKOWANIA I PODNOSZENIA OBIEKTOW ZATOPIONYCH
摘要
申请公布号
PL104518(B1)
申请公布日期
1979.08.31
申请号
PL19770196723
申请日期
1977.03.16
申请人
发明人
分类号
B63C;B63C7/16;(IPC1-7):B63C7/16
主分类号
B63C
代理机构
代理人
主权项
地址
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