3431462

Information

• Patent Grant
• 3431462

• References
• Source

• Patent Number

  3,431,462

• Date Filed

  Not available

• Date Issued

  Tuesday, March 4, 1969
  55 years ago

• CPC

  • H01J31/495 - Pick-up tubes adapted for an input of sonic, ultrasonic, or mechanical vibrations and having an electric output
  • G01N29/06 - Visualisation of the interior

• US Classifications

  • 315 - Electric lamp and discharge devices: systems
  • 073 - Measuring and testing
  • 310 - Electrical generator or motor structure
  • 313 - Electric lamp and discharge devices
  • 367 - Communications, electrical: acoustic wave systems and devices