Improvements in and relating to reservoir writing instruments of the ball tip type,申请号GB19510025762-传众专利搜索

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发明名称	Improvements in and relating to reservoir writing instruments of the ball tip type
摘要
申请公布号	GB738740(A)	申请公布日期	1955.10.19
申请号	GB19510025762	申请日期	1951.11.03
申请人	BIRO SWAN LIMITED	发明人	FEHLING HANS REINHARD
分类号	B43K7/00	主分类号	B43K7/00
代理机构		代理人
主权项
地址

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