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发明名称
摘要
申请公布号
NL7016943(A)
申请公布日期
1971.05.27
申请号
NL19700016943
申请日期
1970.11.19
申请人
发明人
分类号
B63H25/38;(IPC1-7):B63H25/38
主分类号
B63H25/38
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