Improvements in or relating to means for feeding powder from a hopper,申请号GB19470022749-传众专利搜索

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发明名称	Improvements in or relating to means for feeding powder from a hopper
摘要
申请公布号	GB641558(A)	申请公布日期	1950.08.16
申请号	GB19470022749	申请日期	1947.08.15
申请人	JOHN FREDERICK WILLIAMS	发明人
分类号	A01M9/00	主分类号	A01M9/00
代理机构		代理人
主权项
地址

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