Procédé pour le dépoussiérage des galeries dans les exploitations souterraines,申请号FRD1141675-传众专利搜索

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发明名称	Procédé pour le dépoussiérage des galeries dans les exploitations souterraines
摘要
申请公布号	FR1141675(A)	申请公布日期	1957.09.05
申请号	FRD1141675	申请日期	1956.02.17
申请人	KARL SCHMIDT LUFTFILTERBAU	发明人
分类号	E21F5/20	主分类号	E21F5/20
代理机构		代理人
主权项
地址

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