BINARY SIGNAL TRANSMISSION SYSTEM FOR USE IN TRANSMITTING BINARY SIGNALS FROM A LONGWALL MECHANICAL COAL MINER,申请号PL19850252589-传众专利搜索

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发明名称	BINARY SIGNAL TRANSMISSION SYSTEM FOR USE IN TRANSMITTING BINARY SIGNALS FROM A LONGWALL MECHANICAL COAL MINER
摘要
申请公布号	PL148291(B1)	申请公布日期	1989.10.31
申请号	PL19850252589	申请日期	1985.03.25
申请人		发明人
分类号	E21C;E21C35/24;G08C;G08C19/16;H04B;H04B3/54;(IPC1-7):G08C19/16	主分类号	E21C
代理机构		代理人
主权项
地址

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