U.S. Design Patent 328,606 (USD328606S)

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Provided by the ASK Keyboard Patents database

Patent diagrams depicting all five versions of Lexmark's electronic typewriter from a front-right perspective

Applied 24th October 1991

Published 11th August 1992

Expired 11th August 2006

More informaion

Name	Electronic typewriter
Inventors	Peter J. Mendel, Ronald A. Smith, James P. Wang
Assignees	Lexmark
Description	A series of ornamental designs depicting the IBM Wheelwriter Series II electronic typewriter family from 1988 with their Model M based keyboard assemblies. Top row: 10, 30 and 50 or 70; bottom row: 3 and 6.

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