3890624

Information

• Patent Grant
• 3890624

• References
• Source

• Patent Number

  3,890,624

• Date Filed

  Not available

• Date Issued

  Tuesday, June 17, 1975
  49 years ago

• CPC

  • G07C1/08 - wherein the time is indicated by marking an element
  • G07C1/06 - with apparatus adapted for use with individual cards

• US Classifications

  • 346 - Recorders