Improvements in and relating to dust collecting apparatus,申请号GB19530000729-传众专利搜索

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发明名称	Improvements in and relating to dust collecting apparatus
摘要
申请公布号	GB734613(A)	申请公布日期	1955.08.03
申请号	GB19530000729	申请日期	1953.01.09
申请人	HOLMAN BROTHERS LIMITED;ARTHUR TREVENA HOLMAN;MORRIS ORAM;ERIC BASIL JAMES	发明人
分类号	E21B21/07	主分类号	E21B21/07
代理机构		代理人
主权项
地址

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