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经营范围
发明名称
Single cardioid wave detector for seismic signals
摘要
申请公布号
US3332057(A)
申请公布日期
1967.07.18
申请号
US19650428643
申请日期
1965.01.28
申请人
SONIC ENGINEERING COMPANY
发明人
JR. GEORGE M. PAVEY,
分类号
G01V1/18
主分类号
G01V1/18
代理机构
代理人
主权项
地址
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