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经营范围
发明名称
Inclination indicating apparatus
摘要
申请公布号
US2486529(A)
申请公布日期
1949.11.01
申请号
US19450574017
申请日期
1945.01.22
申请人
EASTMAN OIL WELL SURVEY COMPANY
发明人
JACKSON GORDON
分类号
E21B47/022;G01C9/14
主分类号
E21B47/022
代理机构
代理人
主权项
地址
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