3691444

Information

• Patent Grant
• 3691444

• References
• Source

• Patent Number

  3,691,444

• Date Filed

  Not available

• Date Issued

  Tuesday, September 12, 1972
  52 years ago

• CPC

  • H03J5/242 - used exclusively for band selection
  • G08C19/12 - in which the signal transmitted is frequency or phase of ac
  • H03J5/14 - operated by auxiliary power

• US Classifications

  • 318 - Electricity: motive power systems