发明名称 Opening and closing device for retractable nib fountain pen.
摘要 <p>A retractable fountain pen employs a cover plate (16) rotatable about a supporting tube (12) by means of a spring (17) to sealingly contact the tapered front end of a cylindrical head portion (4) to close off a central passageway therein. The tube prevents excess deformation of the resilient tapered front end portion.</p>
申请公布号 EP0080627(A1) 申请公布日期 1983.06.08
申请号 EP19820110443 申请日期 1982.11.11
申请人 PILOT MAN-NEN-HITSU KABUSHIKI KAISHA 发明人 OKI, TAKEO;ICHIKAWA, KATSUTOSHI
分类号 B43K5/17;(IPC1-7):43K5/16 主分类号 B43K5/17
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