1747021

Information

• Patent Grant
• 1747021

• References
• Source

• Patent Number

  1,747,021

• Date Filed

  Not available

• Date Issued

  Tuesday, February 11, 1930
  95 years ago

• CPC

  • G07C1/06 - with apparatus adapted for use with individual cards
  • G07C1/04 - wherein the time is indicated in figures

• US Classifications

  • 346 - Recorders