2190465

Information

• Patent Grant
• 2190465

• References
• Source

• Patent Number

  2,190,465

• Date Filed

  Not available

• Date Issued

  Tuesday, February 13, 1940
  85 years ago

• CPC

  • G10H3/03 - using pick-up means for reading recorded waves
  • Y10T74/18928 - Straight line motions
  • Y10T74/20612 - Hand

• US Classifications

  • 476 - Friction gear transmission systems or components
  • 074 - Machine element or mechanism