![Rotary dial / Chorded keyboard / Technology / Pushbutton / Keying / Human factors / Electronic engineering / Electrical engineering / Human–machine interaction / Push-button / Switches Rotary dial / Chorded keyboard / Technology / Pushbutton / Keying / Human factors / Electronic engineering / Electrical engineering / Human–machine interaction / Push-button / Switches](https://www.pdfsearch.io/img/fabe7dd463c02c1d2c05de615cad116c.jpg)
| Document Date: 2012-11-20 05:05:56 Open Document File Size: 630,95 KBShare Result on Facebook
Company Bell Telephone Laboratories / / IndustryTerm user information processing / adjustable pushbutton telephone sets / telephone dial / pushbutton telephone sets / adjustable telephone set / telephone sets / / Person Murray Hill / / Position Inner Conductor / / ProgrammingLanguage RC / / ProvinceOrState New Jersey / / PublishedMedium THE BELL SYSTEM TECHNICAL JOURNAL / / Technology Dielectric / /
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