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经营范围
发明名称
Acoustic sensor
摘要
申请公布号
GB9500250(D0)
申请公布日期
1995.03.01
申请号
GB19950000250
申请日期
1995.01.06
申请人
GEC-MARCONI LIMITED
发明人
分类号
B06B1/06;E21B17/07;E21B21/08;E21B28/00;E21B43/00;E21B47/01;E21B49/00;G01V1/04;G01V1/18;G01V1/52
主分类号
B06B1/06
代理机构
代理人
主权项
地址
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