3716865

Information

• Patent Grant
• 3716865

• References
• Source

• Patent Number

  3,716,865

• Date Filed

  Not available

• Date Issued

  Tuesday, February 13, 1973
  52 years ago

• CPC

  • G08C19/26 - by varying pulse repetition frequency
  • E05F15/77 - using wireless control
  • E05Y2900/106 - for garages

• US Classifications

  • 341 - Coded data generation or conversion
  • 455 - Telecommunications