B41J5/08- Character or syllable selected by means of keys or keyboards of the typewriter type.B41J5/00- Devices or arrangements for controlling character selection.MECHANISMS PRINTING OTHERWISE THAN FROM A FORME CORRECTION OF TYPOGRAPHICAL ERRORS B41J- TYPEWRITERS SELECTIVE PRINTING MECHANISMS, i.e. QWERTY: This keyboard is similar on mobile phones to the traditional typewriter keyboard invented in the late 1870s and enables a faster typing speed.B41- PRINTING LINING MACHINES TYPEWRITERS STAMPS These keys include the same letter, number, punctuation, and symbol keys found on a traditional typewriter.Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by Dvorak August, William L Dealey filed Critical Dvorak August Priority to US612738A priority Critical patent/US2040248A/en Application granted granted Critical Publication of US2040248A publication Critical patent/US2040248A/en Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US612738A Inventor Dvorak August William L Dealey Original Assignee Dvorak August William L Dealey Priority date (The priority date is an assumption and is not a legal conclusion.
#TYPEWRITER KEYBOARD PDF#
Google Patents US2040248A - Typewriter keyboardĭownload PDF Info Publication number US2040248A US2040248A US612738A US61273832A US2040248A US 2040248 A US2040248 A US 2040248A US 612738 A US612738 A US 612738A US 61273832 A US61273832 A US 61273832A US 2040248 A US2040248 A US 2040248A Authority US United States Prior art keywords typewriter keyboard typewriter keyboard Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.
0 kommentar(er)
