3777082

Information

• Patent Grant
• 3777082

• References
• Source

• Patent Number

  3,777,082

• Date Filed

  Not available

• Date Issued

  Tuesday, December 4, 1973
  51 years ago

• CPC

  • H01H13/785 - characterised by the material of the contacts
  • B41J5/08 - Character or syllable selected by means of keys or keyboards of the typewriter type
  • H01H13/702 - with contacts carried by or formed from layers in a multilayer structure
  • H01H2201/026 - non precious
  • H01H2203/044 - to achieve a predetermined sequence of switching
  • H01H2229/016 - Selective etching
  • H01H2239/026 - Internal encoding

• US Classifications

  • 200 - Electricity: circuit makers and breakers