Improvements in grading machine,申请号GB19440016020-传众专利搜索

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发明名称	Improvements in grading machine
摘要
申请公布号	GB598297(A)	申请公布日期	1948.02.16
申请号	GB19440016020	申请日期	1944.08.22
申请人	NORTH AMERICAN HOLDING CORPORATION	发明人
分类号	C14B1/28	主分类号	C14B1/28
代理机构		代理人
主权项
地址

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