U.S. Design Patent 253,600 (USD253600S)

Provided by the ASK Keyboard Patents database

A patent diagram depicting IBM's typewriter from a front-left perspective
More informaion
NameTypewriter
InventorsAllan L. McCroskery
AssigneesIBM, IBM Information Products
DescriptionAn ornamental design depicting an IBM Electronic Typewriter Model 50 and its reed-based keyboard assembly.