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发明名称
Perfectionnements aux dispositifs pour la recherche de masses bonnes conductrices del'électricité immergées dans un milieu liquide
摘要
申请公布号
FR692993(A)
申请公布日期
1930.11.13
申请号
FRD692993
申请日期
1930.03.28
申请人
发明人
BASSET JAMES
分类号
G01V3/04
主分类号
G01V3/04
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