2607686

Information

• Patent Grant
• 2607686

• References
• Source

• Patent Number

  2,607,686

• Date Filed

  Not available

• Date Issued

  Tuesday, August 19, 1952
  72 years ago

• CPC

  • G03C5/46 - Toning

• US Classifications

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