Improvements in spirit reproducing carbon papers,申请号GB19480015196-传众专利搜索

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发明名称	Improvements in spirit reproducing carbon papers
摘要
申请公布号	GB653573(A)	申请公布日期	1951.05.16
申请号	GB19480015196	申请日期	1948.06.04
申请人	FREDERICK GEORGE FRANCIS	发明人
分类号		主分类号
代理机构		代理人
主权项
地址

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