3800301

Information

• Patent Grant
• 3800301

• References
• Source

• Patent Number

  3,800,301

• Date Filed

  Not available

• Date Issued

  Tuesday, March 26, 1974
  50 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