Improvements in fountain pens,申请号GB19300013209-传众专利搜索

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发明名称	Improvements in fountain pens
摘要
申请公布号	GB346586(A)	申请公布日期	1931.04.16
申请号	GB19300013209	申请日期	1930.04.29
申请人	EVELYN CHARLES DONALDSON RAWLINS	发明人
分类号	B43K5/04	主分类号	B43K5/04
代理机构		代理人
主权项
地址

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