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经营范围
发明名称
Piezo détecteur
摘要
申请公布号
FR57477(E)
申请公布日期
1953.01.28
申请号
FRD57477
申请日期
1947.07.26
申请人
发明人
DION GEORGES
分类号
G01F23/16
主分类号
G01F23/16
代理机构
代理人
主权项
地址
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