1831545

Information

• Patent Grant
• 1831545

• References
• Source

• Patent Number

  1,831,545

• Date Filed

  Not available

• Date Issued

  Tuesday, November 10, 1931
  93 years ago

• CPC

  • H01H51/082 - using rotating ratchet mechanism

• US Classifications

  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets
  • 377 - Electrical pulse counters, pulse dividers, or shift registers: circuits and systems