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发明名称
Inclination indicating device
摘要
申请公布号
US2046956(A)
申请公布日期
1936.07.07
申请号
US19320612002
申请日期
1932.05.18
申请人
J. WARREN MACCLATCHIE
发明人
LYNCH THEODORE L.;RILLING HARRY L.
分类号
E21B47/024
主分类号
E21B47/024
代理机构
代理人
主权项
地址
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