Method of and apparatus for assembling ball point writing tips,申请号US19570674902-传众专利搜索

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发明名称	Method of and apparatus for assembling ball point writing tips
摘要
申请公布号	US3009240(A)	申请公布日期	1961.11.21
申请号	US19570674902	申请日期	1957.07.29
申请人	W. A. SHEAFFER PEN COMPANY	发明人	BROWN WILBUR M.
分类号	B43K1/08	主分类号	B43K1/08
代理机构		代理人
主权项
地址

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