3859744

Information

• Patent Grant
• 3859744

• References
• Source

• Patent Number

  3,859,744

• Date Filed

  Not available

• Date Issued

  Tuesday, January 14, 1975
  50 years ago

• CPC

  • H04M1/21 - Combinations with auxiliary equipment
  • B42F17/343 - with sliding movement of selected cards

• US Classifications

  • 040 - Card, picture, or sign exhibiting
  • D19 - Office supplies