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发明名称
Echo ranging system
摘要
申请公布号
US2991445(A)
申请公布日期
1961.07.04
申请号
US19550515323
申请日期
1955.06.14
申请人
SANGAMO ELECTRIC COMPANY
发明人
HAYNES JAMES BURNEY;LANPHIER CHARLES H.
分类号
G01S1/72
主分类号
G01S1/72
代理机构
代理人
主权项
地址
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