Improved methods in and relating to the construction of sieves,申请号GB19420000479-传众专利搜索

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发明名称	Improved methods in and relating to the construction of sieves
摘要
申请公布号	GB553974(A)	申请公布日期	1943.06.11
申请号	GB19420000479	申请日期	1942.01.13
申请人	CYRIL GREAVES	发明人
分类号	B07B1/12;B07B1/46	主分类号	B07B1/12
代理机构		代理人
主权项
地址

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