2659674

Information

• Patent Grant
• 2659674

• References
• Source

• Patent Number

  2,659,674

• Date Filed

  Not available

• Date Issued

  Tuesday, November 17, 1953
  71 years ago

• CPC

  • G03C5/46 - Toning

• US Classifications

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