3445612

Information

• Patent Grant
• 3445612

• References
• Source

• Patent Number

  3,445,612

• Date Filed

  Not available

• Date Issued

  Tuesday, May 20, 1969
  55 years ago

• CPC

  • G04C21/00 - Producing acoustic time signals by electrical means
  • G04C21/36 - Signal repeating devices

• US Classifications

  • 200 - Electricity: circuit makers and breakers
  • 968 - Horology