Operating mechanism for a writing instrument,申请号US19540408760-传众专利搜索

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发明名称	Operating mechanism for a writing instrument
摘要
申请公布号	US2709989(A)	申请公布日期	1955.06.07
申请号	US19540408760	申请日期	1954.02.08
申请人	W. A. SHEAFFER PEN COMPANY	发明人	MANSHEIM RICHARD J.
分类号	B43K24/08	主分类号	B43K24/08
代理机构		代理人
主权项
地址

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