Apparatus for automatically turning page of book
Apparatus for the presentation of reading materials
Attachable power-assisted copy indicator
Automatic induction device for turning pages
Computer typing aid
Convertible swing arm and desk top copy holder
Copy holder
Copy holder
Copy holder
Copy holder with motor driven line guide
Copy stand
Copyholder
Copyholder and line follower
Copyholder with mechanized line guide
Device for holding flexible, yieldable information carriers
Digital-to-analog converter device for processing PCM signals of
Document display and retention device
Document holder
Electrical reading guide device for use in typing by a typist
Electrically operated copyholder