1981585

Information

• Patent Grant
• 1981585

• References
• Source

• Patent Number

  1,981,585

• Date Filed

  Not available

• Date Issued

  Tuesday, November 20, 1934
  90 years ago

• CPC

  • B43L5/025 - with paper rolls

• US Classifications

  • 434 - Education and demonstration
  • 040 - Card, picture, or sign exhibiting