Keyboard Patents

JavaScript disabled or not supported

It appears you have prevented JavaScript from running in your web browser or are using a web browser that does not support JavaScript. Admiral Shark's Keyboards presently requires JavaScript for quality-of-life features like switching between light/dark mode, navigating via title or image and copying search query links, and is necessary for the keyboard matrix simulators, keyboard property modals, interactable slideshows and image size optimisation. Please consider enabling JavaScript or using a web browser that supports it for a fully-featured and correctly working experience. If you have suggestions for reducing JavaScript dependency, feel free to let me know.

This is a preview of upcoming Admiral Shark's Keyboards content. This page is considered work-in-progress and should be treated as such.

A gallery of patents that describe technologies or illustrate designs relating to IBM and family keyboards, typewriters and keypunches. This includes keyswitch/actuator designs, ornamental designs (overall appearance), integrated pointing devices such as TrackPoints, and host systems such as PCs, laptops, terminals, consoles and electronic typewriters. All illustrations provided are from the patents themselves, which are believed to be within the public domain. A total of 112 patents have been recorded. The patent list is currently filtered to 1 patent(s).

U.S. Utility Patent 2,641,320 (US2641320A)

Applied 13 Jul 1949

Published 9 Jun 1953

Expired 9 Jun 1970

More info

Name	Composite keyboard
Inventors	Reynold B. Johnson
Assignees	IBM
Description	An invention of an alphanumeric keypunch keyboard layout that integrates a telephone-arrangement overlay numeric keypad, numeric shift and keypunch-specific function keys onto a keyboard's typewriter section. It was first implemented on the IBM 024 Card Punch and 026 Printing Card Punch Combination Keyboards. It also serves as the basis for many IBM data entry terminal keyboard layouts.