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发明名称
METHOD OF RECORDING AND INDICATING RECEIVED ECHO AND EXTERNAL NOISE IN ACOUSTIC MEASUREMENT
摘要
申请公布号
JPS52141278(A)
申请公布日期
1977.11.25
申请号
JP19760057247
申请日期
1976.05.20
申请人
YUSEISHO DENPA KENKYUSHO
发明人
AKITA KINICHIROU
分类号
G01S7/60;G01H3/10
主分类号
G01S7/60
代理机构
代理人
主权项
地址
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