3725907

Information

• Patent Grant
• 3725907

• References
• Source

• Patent Number

  3,725,907

• Date Filed

  Not available

• Date Issued

  Tuesday, April 3, 1973
  51 years ago

• CPC

  • G06C7/08 - with one set of keys for all denominations
  • H01H13/64 - wherein the switch has more than two electrically distinguishable positions
  • H01H13/7006 - comprising a separate movable contact element for each switch site, all other elements being integrated in layers
  • H01H13/702 - with contacts carried by or formed from layers in a multilayer structure
  • H01H2203/006 - Staples

• US Classifications

  • 341 - Coded data generation or conversion
  • 178 - Telegraphy
  • 200 - Electricity: circuit makers and breakers
  • 379 - Telephonic communications
  • 400 - Typewriting machines