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发明名称
Apparatus and method for physically defining an instrument-perceptible spacial location
摘要
申请公布号
US3381294(A)
申请公布日期
1968.04.30
申请号
US19650495001
申请日期
1965.09.02
申请人
R.W. HODGSON
发明人
HODGSON R. W.
分类号
G01S1/02;G01S19/52
主分类号
G01S1/02
代理机构
代理人
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地址
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