3654596

Information

• Patent Grant
• 3654596

• References
• Source

• Patent Number

  3,654,596

• Date Filed

  Not available

• Date Issued

  Tuesday, April 4, 1972
  52 years ago

• CPC

  • H01J31/495 - Pick-up tubes adapted for an input of sonic, ultrasonic, or mechanical vibrations and having an electric output
  • G01S15/8975 - using acoustical image/electron beam converter tubes

• US Classifications

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