2218828

Information

• Patent Grant
• 2218828

• References
• Source

• Patent Number

  2,218,828

• Date Filed

  Not available

• Date Issued

  Tuesday, October 22, 1940
  84 years ago

• CPC

  • G03C11/18 - Colouring

• US Classifications

  • 156 - Adhesive bonding and miscellaneous chemical manufacture
  • 040 - Card, picture, or sign exhibiting