A method of producing a substitute for tracing cloth or tracing paper,申请号GB19570019977-传众专利搜索

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发明名称	A method of producing a substitute for tracing cloth or tracing paper
摘要
申请公布号	GB812099(A)	申请公布日期	1959.04.15
申请号	GB19570019977	申请日期	1957.06.25
申请人	ERNST GRONWALL	发明人
分类号	B24C1/00	主分类号	B24C1/00
代理机构		代理人
主权项
地址

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