Patent search ap:("IBM") AND inv:"MACDANIEL ROBERT FREDERICK" Page 1

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发明专利
DIRECT KEYBOARD CONTROLLED CHARACTER SELECTION RACK SHIFTING DEVICE FOR A SINGLE ELEMENT TYPEWRITER 未知

公开(公告)号：DE3069008D1

公开(公告)日：1984-09-27

申请号：DE3069008

申请日：1980-05-29

Applicant: IBM

Inventor： MACDANIEL ROBERT FREDERICK , PREWARSKI MIKE , RAMEY LEONARD DAVID

IPC: B41J1/60 , B41J7/50 , B41J7/52 , B41J25/24

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