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发明名称
Mapping device
摘要
申请公布号
US2590755(A)
申请公布日期
1952.03.25
申请号
US19460714876
申请日期
1946.12.07
申请人
NORTH AMERICAN GEOPHYSICAL COMPANY
发明人
CLOUD RAYMOND T.
分类号
G01C17/00
主分类号
G01C17/00
代理机构
代理人
主权项
地址
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