3667705

Information

• Patent Grant
• 3667705

• References
• Source

• Patent Number

  3,667,705

• Date Filed

  Not available

• Date Issued

  Tuesday, June 6, 1972
  52 years ago

• CPC

  • B64D17/56 - responsive to barometric pressure

• US Classifications

  • 244 - Aeronautics and astronautics
  • 200 - Electricity: circuit makers and breakers