3644928

Information

• Patent Grant
• 3644928

• References
• Source

• Patent Number

  3,644,928

• Date Filed

  Not available

• Date Issued

  Tuesday, February 22, 1972
  53 years ago

• CPC

  • G01C21/00 - Navigation Navigational instruments not provided for in preceding groups
  • B64D2700/62271 - Roll, pitch or yaw indicators

• US Classifications

  • 342 - Communications: directive radio wave systems and devices
  • 340 - Communications: electrical