Matches 1 - 15 out of 15
Match Document Document Title
4552474 Backspace device in typewriter  
A backspace device in a typewriter comprising: an interposer operable by the operation of a key lever; a cycle bail operable by the interposer; a cycle clutch for intermittently transmitting a...
4108557 Error correcting typewriter  
An error correction system for a typewriter in which a silent type action with a blank type face is operatively connected and synchronized to initiate a backspace action and elevate and feed an...
3882990 Error correction system for typewriters or printing devices  
A novel error correction system applicable to any type of typewriter or printing apparatus having a ribbon with an appropriate strip for obliterating printed letters, comprises a correction key...
3618736 VARIABLE FORCE IMPACT PRINTER WITH BACKSPACE MECHANISM  
A single-elment printer having a complex drive cam for control of print impact velocity, employs power taken from the print shaft within the type element carrier to perform backspace operations as...
3455430 BACK SPACING MECHANISM  
3366215 Single rack backspace  
3270852 Typewriter erasure mechanism  
3268049 Function control arrangements having common drive means  
3236352 Keyboard operated automatic marking machine  
3204745 Error-correcting typewriter  
3154183 Ribbon shift for error-obliterating typewriters  
3149711 Error-correcting typewriter  
2872015 Stepwise carriage positioning mechanism and related features  
2818958 Escapement pawl control  
0930962 Title is not available  
Matches 1 - 15 out of 15