发明名称 Combination pen and pencil writing instrument
摘要 A combination pen and pencil writing instrument is provided and consists of a connector member for joining the distal ends of a ball-point pen and a lead pencil together, so that a person using the writing instrument can use the ball-point pen or lead pencil for writing, drawing and marking.
申请公布号 US5318372(A) 申请公布日期 1994.06.07
申请号 US19900595993 申请日期 1990.10.11
申请人 BESTHORNE, GERARD 发明人 BESTHORNE, GERARD
分类号 B43K23/00;B43K27/02;(IPC1-7):B43K27/02;B43K29/02 主分类号 B43K23/00
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