U.S. Design Patent 217,913 (USD217913S)

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Provided by the ASK Keyboard Patents database

A patent drawing of IBM's Keypunch for document cards from a front-right perspective

Applied 9th July 1969

Published 30th June 1970

Expired ~1984

More informaion

Name	Keypunch for document cards
Inventors	Wayne L. Aderman, Douglas C. Antonelli, Dennis P. Butterbaugh, James R. Hammer, Richard J. Ullmer, Edward R. Wiener, Frank Wilkey, Jr.
Assignees	IBM
Description	An ornamental design depicting an IBM 5496 Data Recorder and its Elastic Diaphragm encoded keyboard.

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