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发明名称
IMPROVEMENTS IN OR RELATING TO ULTRASONIC PULSE-ECHO SYSTEMS
摘要
申请公布号
GB1249628(A)
申请公布日期
1971.10.13
申请号
GB19680001906
申请日期
1968.01.12
申请人
JANOS SZILARD
发明人
JANOS SZILARD
分类号
B06B1/06;G01S1/72;G01S7/521;G10K11/00
主分类号
B06B1/06
代理机构
代理人
主权项
地址
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