IBM Wheelwriter/Sources: Difference between revisions
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* [[patent:US4894798|US4894798 - Automatic stop code insertion feature for a word processing apparatus]] | * [[patent:US4894798|US4894798 - Automatic stop code insertion feature for a word processing apparatus]] | ||
* [[patent:US4957380|US4957380 - Tab adjust function for an electronic typewriter to permit the shifting of tabs from a first to a second format]] | * [[patent:US4957380|US4957380 - Tab adjust function for an electronic typewriter to permit the shifting of tabs from a first to a second format]] | ||
=== Lexmark === | |||
* [[patent:US5038279|US5038279 - Direct hot-keying with reset of printer parameters for a secondary application including a typewriter emulator]] | |||
=== Other Manufacturers === | === Other Manufacturers === | ||
Revision as of 14:49, 5 October 2016
Patents
Most of these have expired by now, 20 years after invention.
IBM Hardware
IBM Software
- US4799811 - Automatic relocate on continuation of document playout
- US4894798 - Automatic stop code insertion feature for a word processing apparatus
- US4957380 - Tab adjust function for an electronic typewriter to permit the shifting of tabs from a first to a second format
Lexmark
Other Manufacturers
- US4842428 - Electronic typewriter with spell checking and correction: Brother
- US3924722 - Typewriter with electronic keyboard: Cpt Corp
