2292139

Information

• Patent Grant
• 2292139

• References
• Source

• Patent Number

  2,292,139

• Date Filed

  Not available

• Date Issued

  Tuesday, August 4, 1942
  82 years ago

• CPC

  • G04B17/08 - Oscillators with coil springs stretched and unstretched axially

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 968 - Horology