2670971

Information

• Patent Grant
• 2670971

• References
• Source

• Patent Number

  2,670,971

• Date Filed

  Not available

• Date Issued

  Tuesday, March 2, 1954
  70 years ago

• CPC

  • B41M5/124 - using pressure to make a masked colour visible
  • G09F3/10 - by an adhesive layer
  • G09F2003/023 - Adhesive
  • G09F2003/0257 - Multilayer
  • G09F2003/0261 - encapsulated in polymer

• US Classifications

  • 462 - Books, strips, and leaves for manifolding