2639416

Information

• Patent Grant
• 2639416

• References
• Source

• Patent Number

  2,639,416

• Date Filed

  Not available

• Date Issued

  Tuesday, May 19, 1953
  71 years ago

• CPC

  • H01H63/20 - using stepping magnet and ratchet
  • H03K23/74 - using relays
  • Y10T74/20012 - Multiple controlled elements

• US Classifications

  • 377 - Electrical pulse counters, pulse dividers, or shift registers: circuits and systems
  • 074 - Machine element or mechanism
  • 200 - Electricity: circuit makers and breakers
  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets