3835810

Information

• Patent Grant
• 3835810

• References
• Source

• Patent Number

  3,835,810

• Date Filed

  Not available

• Date Issued

  Tuesday, September 17, 1974
  50 years ago

• CPC

  • G10K11/00 - Methods or devices for transmitting, conducting or directing sound in general Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
  • F15C1/22 - Oscillators
  • G10K5/02 - Ultrasonic whistles

• US Classifications

  • 116 - Signals and indicators
  • 239 - Fluid sprinkling, spraying, and diffusing