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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Retractable pen ： ウィキペディア英語版 Retractable pen Retractable pens are pens which have a spring-loaded ink cartridge which retracts and extends outside a protective housing. By clicking downward on the top of the pen, the tip is extended and locks in place at the bottom of the housing for use. Pen clicking is repeated pressing of the button of a retractable pen which produces a clicking sound. ==History== The origin of the retractable pen is controversial. The Frawley Pen Company, founded in 1949 by Patrick J. Frawley, claims to have made the "first pen with a retractable ballpoint tip" in 1950.〔(【引用サイトリンク】 title=BALLPOINT PEN )〕〔(【引用サイトリンク】 title=The history of the ballpoint pen )〕 However, it has also been claimed that the Pilot Pen from Japan was introduced as the first retractable fountain pen, and remains a popular product in the Pilot-Namiki line. Further, a patent number 3819282 for a retractable pen was filed on November 2, 1972 (published on June 25, 1974) by Penn Corporation (located in Princeton, NJ).〔(【引用サイトリンク】 title=RETRACTABLE PEN )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Retractable pen」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.