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发明名称
Sonic depthometer
摘要
申请公布号
US2738487(A)
申请公布日期
1956.03.13
申请号
US19500202212
申请日期
1950.12.22
申请人
RADIO CORPORATION OF AMERICA
发明人
HACKLEY REGINALD A.;ROGERS EDWARD S.
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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