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发明名称
Dispositif indicateur du niveau des matières dans les silos, trémies et autres réservoirs de stockage
摘要
申请公布号
FR825007(A)
申请公布日期
1938.02.22
申请号
FRD825007
申请日期
1936.11.06
申请人
BABCOCK & WILCOX
发明人
分类号
G01F23/18
主分类号
G01F23/18
代理机构
代理人
主权项
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