U.S. Design Patent 270,729 (USD270729S)

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Provided by the ASK Keyboard Patents database

A patent diagram depicting IBM's interactive terminal keyboard from a front-left perspective

Applied 14th September 1981

Published 27th September 1983

Expired 27th September 1997

More informaion

Name	Interactive terminal keyboard
Inventors	Donald F. Lahey, Dallas G. Molerin
Assignees	IBM, IBM Information Products
Description	An ornamental design depicting the 472X-300 type Model F keyboard for IBM 4704 Display Terminals. Compared to the production keyboard, this design has a smaller spacebar with two new keys flanking it.

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