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发明名称
Photoelectric inclinometer
摘要
申请公布号
US2208147(A)
申请公布日期
1940.07.16
申请号
US19380226970
申请日期
1938.08.26
申请人
STANOLIND OIL AND GAS COMPANY
发明人
EISLER JOSEPH DANIEL
分类号
E21B47/022;G01C9/12
主分类号
E21B47/022
代理机构
代理人
主权项
地址
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