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发明名称
APPARATUS AND METHOD FOR SENSING ACOUSTIC REFLECTIONS
摘要
申请公布号
EP0321146(A3)
申请公布日期
1990.02.14
申请号
EP19880311622
申请日期
1988.12.08
申请人
SIMMONDS PRECISION PRODUCTS INC.
发明人
LICHTENFELS, FREDERICK LLOYD;ANDRESEN, RICHARD P.
分类号
G01V1/00;G01H15/00;G01N29/00;G01N29/11;G01N29/30;G01S15/04;(IPC1-7):G01H15/00;B64D15/20
主分类号
G01V1/00
代理机构
代理人
主权项
地址
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