Airflow control in mines,申请号ZA19940006409-传众专利搜索

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发明名称	Airflow control in mines
摘要
申请公布号	ZA9406409(B)	申请公布日期	1995.03.17
申请号	ZA19940006409	申请日期	1994.08.23
申请人	STEED VICTOR OTTO	发明人	VICTOR OTTO STEED
分类号	E21C	主分类号	E21C
代理机构		代理人
主权项
地址

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