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发明名称
TERRESTRIAL MAGNETISM RESPONSIVE DEVICE INCLUDING FLUID SUPPORTED INDICATING MEANS FOR INVESTIGATING SUBSURFACE CHARACTERISTICS OF THE EARTH
摘要
申请公布号
US3423672(A)
申请公布日期
1969.01.21
申请号
USD3423672
申请日期
1967.05.08
申请人
RAYMOND F. STOCKTON
发明人
RAYMOND F. STOCKTON
分类号
G01R33/038;G01V3/08;(IPC1-7):G01V3/08
主分类号
G01R33/038
代理机构
代理人
主权项
地址
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