Improvements in writing instruments,申请号GB19450029630-传众专利搜索

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发明名称	Improvements in writing instruments
摘要
申请公布号	GB629240(A)	申请公布日期	1949.09.15
申请号	GB19450029630	申请日期	1945.11.07
申请人	HENRY GEORGE MARTIN	发明人
分类号	B43K27/12	主分类号	B43K27/12
代理机构		代理人
主权项
地址

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