3152229

Information

• Patent Grant
• 3152229

• References
• Source

• Patent Number

  3,152,229

• Date Filed

  Not available

• Date Issued

  Tuesday, October 6, 1964
  60 years ago

• CPC

  • G04C21/36 - Signal repeating devices

• US Classifications

  • 200 - Electricity: circuit makers and breakers
  • 368 - Horology: time measuring systems or devices
  • 968 - Horology