2316291

Information

• Patent Grant
• 2316291

• References
• Source

• Patent Number

  2,316,291

• Date Filed

  Not available

• Date Issued

  Tuesday, April 13, 1943
  81 years ago

• CPC

  • G03C11/04 - Retouching

• US Classifications

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