Cartridge fountain pen,申请号US19460665568-传众专利搜索

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发明名称	Cartridge fountain pen
摘要
申请公布号	US2517453(A)	申请公布日期	1950.08.01
申请号	US19460665568	申请日期	1946.04.27
申请人	FREDERICK SWEET JOHN	发明人	SWEET JOHN FREDERICK
分类号	B43K5/14	主分类号	B43K5/14
代理机构		代理人
主权项
地址

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