2899580

Information

• Patent Grant
• 2899580

• References
• Source

• Patent Number

  2,899,580

• Date Filed

  Not available

• Date Issued

  Tuesday, August 11, 1959
  65 years ago

• CPC

  • H01J31/495 - Pick-up tubes adapted for an input of sonic, ultrasonic, or mechanical vibrations and having an electric output

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 073 - Measuring and testing
  • 315 - Electric lamp and discharge devices: systems
  • 367 - Communications, electrical: acoustic wave systems and devices