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发明名称
UNTERWASSER-BODENERFORSCHUNG
摘要
申请公布号
DE3023519(A1)
申请公布日期
1981.01.15
申请号
DE19803023519
申请日期
1980.06.24
申请人
KONINKLIJKE BOS KALIS WESTMINSTER GROUP N.V.
发明人
WILLEM RIETVELD,CORNELIS FREDRIK
分类号
G01C13/00;G01V1/38;(IPC1-7):G01V1/38;B63G8/42
主分类号
G01C13/00
代理机构
代理人
主权项
地址
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