3447252

Information

• Patent Grant
• 3447252

• References
• Source

• Patent Number

  3,447,252

• Date Filed

  Not available

• Date Issued

  Tuesday, June 3, 1969
  55 years ago

• CPC

  • G09F11/29 - of a band other than endless
  • Y10S40/901 - Tv/radio program indicator

• US Classifications

  • 040 - Card, picture, or sign exhibiting