METHOD AND APPARATUS FOR ECHO-SOUNDING OF SHORT DISTANCES,申请号USD3629813-传众专利搜索

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发明名称	METHOD AND APPARATUS FOR ECHO-SOUNDING OF SHORT DISTANCES
摘要
申请公布号	US3629813(A)	申请公布日期	1971.12.21
申请号	USD3629813	申请日期	1969.07.31
申请人	ELECTROACUSTIC GMBH.	发明人	HANS DRENKELFORT
分类号	G01S7/60;(IPC1-7):G01S9/68	主分类号	G01S7/60
代理机构		代理人
主权项
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