3419235

Information

• Patent Grant
• 3419235

• References
• Source

• Patent Number

  3,419,235

• Date Filed

  Not available

• Date Issued

  Tuesday, December 31, 1968
  56 years ago

• CPC

  • G01S15/12 - wherein the pulse-recurrence frequency is varied to provide a desired time relationship between the transmission of a pulse and the receipt of the echo of a preceding pulse
  • B64D17/52 - Opening
  • B64D2700/62552 - Devices to open or to drive the parachute during fall

• US Classifications

  • 244 - Aeronautics and astronautics
  • 367 - Communications, electrical: acoustic wave systems and devices