2123881

Information

• Patent Grant
• 2123881

• References
• Source

• Patent Number

  2,123,881

• Date Filed

  Not available

• Date Issued

  Tuesday, July 19, 1938
  86 years ago

• CPC

  • A41H3/06 - Patterns on paper

• US Classifications

  • 033 - Geometrical instruments
  • 283 - Printed matter