1471836

Information

• Patent Grant
• 1471836

• References
• Source

• Patent Number

  1,471,836

• Date Filed

  Not available

• Date Issued

  Tuesday, October 23, 1923
  100 years ago

• CPC

  • G07F17/166 - for calendars

• US Classifications

  • 040 - Card, picture, or sign exhibiting