3823309

Information

• Patent Grant
• 3823309

• References
• Source

• Patent Number

  3,823,309

• Date Filed

  Not available

• Date Issued

  Tuesday, July 9, 1974
  50 years ago

• CPC

  • H01H13/705 - characterised by construction, mounting or arrangement of operating parts
  • G06C7/02 - Keyboards
  • H01H2209/014 - composed of different layers Lubricant in between
  • H01H2221/03 - Stoppers for on or off position
  • H01H2221/054 - connected by flexible webs
  • H01H2221/056 - Modular conception
  • H01H2223/024 - Screw
  • H01H2229/034 - Positioning of layers
  • H01H2229/04 - Solder problems
  • H01H2229/042 - Snap coupling Snap mounting
  • H01H2229/046 - Multi-colour or double shot injection moulding
  • H01H2231/002 - Calculator, computer
  • H01H2233/004 - One molded part

• US Classifications

  • 235 - Registers
  • 200 - Electricity: circuit makers and breakers
  • 400 - Typewriting machines