Improvements in or relating to screening devices,申请号GB19340022680-传众专利搜索

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发明名称	Improvements in or relating to screening devices
摘要
申请公布号	GB445181(A)	申请公布日期	1936.04.03
申请号	GB19340022680	申请日期	1934.08.03
申请人	LOREN GLENN SYMONS	发明人
分类号	B07B1/28	主分类号	B07B1/28
代理机构		代理人
主权项
地址

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