2900021

Information

• Patent Grant
• 2900021

• References
• Source

• Patent Number

  2,900,021

• Date Filed

  Not available

• Date Issued

  Tuesday, August 18, 1959
  66 years ago

• CPC

  • H03K17/288 - in tube switches
  • H01H7/10 - by escapement
  • Y10T74/1502 - Escapement

• US Classifications

  • 185 - Motors: spring, weight, or animal powered
  • 074 - Machine element or mechanism
  • 200 - Electricity: circuit makers and breakers
  • 331 - Oscillators
  • 368 - Horology: time measuring systems or devices