Ball point pen,申请号US19470763811-传众专利搜索

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发明名称	Ball point pen
摘要
申请公布号	US2487483(A)	申请公布日期	1949.11.08
申请号	US19470763811	申请日期	1947.07.26
申请人	PETER J. GAYLOR	发明人	SECKERS STEPHEN G.
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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