ALTERNATE CHARACTER SELECTION MECHANISM FOR TYPEWRITERS
United States Patent 3524527
US Patent References:
Single element printing machine
- - 2879876
Print interlock for typewriter
- - 3157265
/3273684.html
- - 3273684
Keyboard sequence discriminator with different codes for upper and lower case
- - 3311211
Single element printing machine
- - 2879876
Print interlock for typewriter
- - 3157265
/3273684.html
- - 3273684
Keyboard sequence discriminator with different codes for upper and lower case
- - 3311211
Inventors:
Davidge, Ronald V.
Publication Date:
08/18/1970
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Export Citation:
Assignee:
IBM
Primary Class:
Other Classes:
400/258
International Classes:
B41J25/08; B41J25/00; B41J25/24