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1. 发明授权

US3733139A Dual writing instrument 失效
标题翻译：双写仪器
公开(公告)号：US3733139A
公开(公告)日：1973-05-15
申请号：US3733139D
申请日：1971-11-05
申请人： NEIDHARDT J G , NEIDHARDT J D
发明人： NEIDHARDT J G , NEIDHARDT J D
IPC分类号： B43K27/08 , B43K27/12
CPC分类号： B43K27/08
摘要： There is herein disclosed a dual-purpose writing device having a main, central body with opened ends therein, adapted to removably receive end bodies, one of the end bodies being provided with a bore in which is disposed a retractable ink cartridge, the second end body being provided with a cavity adapted to become a chamber for storing of writing fluid when a felt writing tip is disposed within the opened end thereof. The device is also provided with a cap member designed to fit as a cover over either end body.
摘要翻译：这里公开了一种双用途书写装置，其具有主中心体，其中具有开放的端部，适于可移除地容纳端体，其中一个端体设置有孔，其中设置有可缩回墨盒，第二端主体设置有空腔，当毛毡书写尖端设置在其开口端内时，适于成为用于储存书写液的腔室。该装置还设置有盖构件，该盖构件被设计成在任一端部上装配成盖。

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