ECHO SIGNAL SYSTEM FOR DETECTING OBJECTS,申请号GB19750011997-传众专利搜索

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发明名称	ECHO SIGNAL SYSTEM FOR DETECTING OBJECTS
摘要
申请公布号	GB1509682(A)	申请公布日期	1978.05.04
申请号	GB19750011997	申请日期	1975.03.21
申请人	PITTWAY CORP	发明人
分类号	G08B13/16;G01S13/56;G08B13/24;(IPC1-7):G01S9/44	主分类号	G08B13/16
代理机构		代理人
主权项
地址

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