Writing implements of the rotatable-ball type,申请号GB19450023719-传众专利搜索

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发明名称	Writing implements of the rotatable-ball type
摘要
申请公布号	GB608961(A)	申请公布日期	1948.09.23
申请号	GB19450023719	申请日期	1945.09.14
申请人	EVERSHARP, INC.	发明人
分类号	B43K7/02	主分类号	B43K7/02
代理机构		代理人
主权项
地址

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