2322540

Information

• Patent Grant
• 2322540

• References
• Source

• Patent Number

  2,322,540

• Date Filed

  Not available

• Date Issued

  Tuesday, June 22, 1943
  81 years ago

• CPC

  • B41C1/12 - Multicolour formes

• US Classifications

  • 430 - Radiation imagery chemistry: process, composition, or product thereof