2307438

Information

• Patent Grant
• 2307438

• References
• Source

• Patent Number

  2,307,438

• Date Filed

  Not available

• Date Issued

  Tuesday, January 5, 1943
  82 years ago

• CPC

  • H01J31/495 - Pick-up tubes adapted for an input of sonic, ultrasonic, or mechanical vibrations and having an electric output
  • H03C1/32 - by deflection of electron beam in discharge tube

• US Classifications

  • 178 - Telegraphy
  • 313 - Electric lamp and discharge devices
  • 315 - Electric lamp and discharge devices: systems
  • 324 - Electricity: measuring and testing
  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems
  • 333 - Wave transmission lines and networks