Improvements relating to tube cleaners,申请号GB19300021221-传众专利搜索

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发明名称	Improvements relating to tube cleaners
摘要
申请公布号	GB350287(A)	申请公布日期	1931.06.11
申请号	GB19300021221	申请日期	1930.07.14
申请人	DANIEL TAVISH NICHOLSON	发明人
分类号	B08B9/04	主分类号	B08B9/04
代理机构		代理人
主权项
地址

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