Patent · US Expired

Combination timepiece and calculator including slidable keyboard means

US4086655A · kind A · utility

10Cited by
5References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 22, 1976
Grant dateApr 25, 1978
Priority date
Expiry dateDec 22, 1996

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG04G9/007
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

In a combination timepiece and calculator, a keyboard receiving section is provided within the body of the combination timepiece and calculator for accommodating a slidable keyboard therein. Switching means are associated with the keyboard receiving section so as to place the combination timepiece and calculator in the timepiece mode when the keyboard is housed within the keyboard receiving section, and to place the combination timepiece and calculator in the calculator mode when the keyboard is drawn out from the keyboard receiving section.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.