2699994

Information

• Patent Grant
• 2699994

• References
• Source

• Patent Number

  2,699,994

• Date Filed

  Not available

• Date Issued

  Tuesday, January 18, 1955
  70 years ago

• CPC

  • G03C5/16 - X-ray, infra-red, or ultra-violet ray processes
  • G03C5/46 - Toning

• US Classifications

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