3138745

Information

• Patent Grant
• 3138745

• References
• Source

• Patent Number

  3,138,745

• Date Filed

  Not available

• Date Issued

  Tuesday, June 23, 1964
  60 years ago

• CPC

  • H01H51/32 - Frequency relays Mechanically-tuned relays
  • H01H50/74 - Mechanical means for producing a desired natural frequency of operation of the contacts

• US Classifications

  • 361 - Electricity: electrical systems and devices
  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets