3928928

Information

• Patent Grant
• 3928928

• References
• Source

• Patent Number

  3,928,928

• Date Filed

  Not available

• Date Issued

  Tuesday, December 30, 1975
  50 years ago

• CPC

  • G09F27/00 - Combined visual and audible advertising or displaying
  • G11B33/06 - combined with other apparatus having a different main function
  • G09F2027/002 - Advertising message recorded in a memory device

• US Classifications

  • 040 - Card, picture, or sign exhibiting
  • G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER