发明名称 Refillable ink ribbon cartridge for use in electronic typewriter
摘要 A refillable ink ribbon cartridge for use in an electronic typewriter which includes a housing, a feed spool member having symmetric C-shaped springs for slidably receiving and removing a changeable feed spool, a winding spool member having a lever and a lever opener for slidably inserting and removing a winding spool, and a jagged wheel whereby the used ink ribbon cartridge can be reused and maintains a constant tension on the ink ribbon between the feed and winding spools.
申请公布号 US4990008(A) 申请公布日期 1991.02.05
申请号 US19890426670 申请日期 1989.10.26
申请人 HWANG, CHIMAN 发明人 HWANG, CHIMAN
分类号 B41J32/00;B41J35/28 主分类号 B41J32/00
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