3021383

Information

• Patent Grant
• 3021383

• References
• Source

• Patent Number

  3,021,383

• Date Filed

  Not available

• Date Issued

  Tuesday, February 13, 1962
  63 years ago

• CPC

  • H04N7/164 - Coin-freed apparatus
  • G07F17/16 - for devices exhibiting advertisements, announcements, pictures or the like
  • G07F17/28 - for radio apparatus

• US Classifications

  • 725 - Interactive video distribution systems
  • 065 - Glass manufacturing
  • 348 - Television
  • 380 - Cryptography