1422235

Information

• Patent Grant
• 1422235

• References
• Source

• Patent Number

  1,422,235

• Date Filed

  Not available

• Date Issued

  Tuesday, July 11, 1922
  103 years ago

• CPC

  • G09D3/08 - of disc form
  • G06G1/0078 - for calculating interests

• US Classifications

  • 040 - Card, picture, or sign exhibiting
  • 235 - Registers