3797630

Information

• Patent Grant
• 3797630

• References
• Source

• Patent Number

  3,797,630

• Date Filed

  Not available

• Date Issued

  Tuesday, March 19, 1974
  50 years ago

• CPC

  • H01H13/02 - Details
  • B41J5/08 - Character or syllable selected by means of keys or keyboards of the typewriter type
  • H01H13/705 - characterised by construction, mounting or arrangement of operating parts
  • H01H2203/056 - Cuts or depressions in support
  • H01H2205/022 - Conductive rubber
  • H01H2215/036 - Metallic disc
  • H01H2217/02 - After travel
  • H01H2221/002 - integral with membrane
  • H01H2221/04 - magnetic
  • H01H2221/062 - Damping vibrations
  • H01H2221/066 - replaceable
  • H01H2223/002 - sealed
  • H01H2223/008 - metallic
  • H01H2233/034 - Snap coupling
  • H01H2239/006 - Containing a capacitive switch or usable as such
  • H01H2239/008 - Static electricity considerations

• US Classifications

  • 400 - Typewriting machines
  • 235 - Registers
  • 341 - Coded data generation or conversion
  • 361 - Electricity: electrical systems and devices
  • 379 - Telephonic communications