TRANSMITTER CIRCUIT ARRANGEMENT FOR USE IN CALIBRATION OF SHORT DISTANCE RADIO RECEIVERS INTENDED TO LOCATE POSITIONS OF ENTOMBED PERSONS,申请号PL19820236085-传众专利搜索

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发明名称	TRANSMITTER CIRCUIT ARRANGEMENT FOR USE IN CALIBRATION OF SHORT DISTANCE RADIO RECEIVERS INTENDED TO LOCATE POSITIONS OF ENTOMBED PERSONS
摘要
申请公布号	PL136826(B1)	申请公布日期	1986.03.31
申请号	PL19820236085	申请日期	1982.04.22
申请人		发明人
分类号	E21F11/00;G01S;G01S11/00;(IPC1-7):G01S11/00	主分类号	E21F11/00
代理机构		代理人
主权项
地址

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