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Patent US 3584174A: Difference between revisions
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|Title=Push-button switch apparatus having cam actuated switch contacts and selective illumination means | |Title=Push-button switch apparatus having cam actuated switch contacts and selective illumination means | ||
|Company=Tektronix Inc | |Company=Tektronix Inc | ||
|Inventors= | |Inventors=Tony Sprando; Peter S Winkelmann | ||
|Filing date=1969-06-09 | |Filing date=1969-06-09 | ||
|Grant date=1971-06-08 | |Grant date=1971-06-08 | ||