2905904

Information

• Patent Grant
• 2905904

• References
• Source

• Patent Number

  2,905,904

• Date Filed

  Not available

• Date Issued

  Tuesday, September 22, 1959
  65 years ago

• CPC

  • G04C3/047 - using other coupling means

• US Classifications

  • 331 - Oscillators
  • 318 - Electricity: motive power systems
  • 968 - Horology