Improvements in hectographic copying machines,申请号GB19500021559-传众专利搜索

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发明名称	Improvements in hectographic copying machines
摘要
申请公布号	GB692792(A)	申请公布日期	1953.06.17
申请号	GB19500021559	申请日期	1950.08.31
申请人	BLOCK & ANDERSON LIMITED	发明人
分类号	B41L7/08	主分类号	B41L7/08
代理机构		代理人
主权项
地址

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