2192929

Information

• Patent Grant
• 2192929

• References
• Source

• Patent Number

  2,192,929

• Date Filed

  Not available

• Date Issued

  Tuesday, March 12, 1940
  84 years ago

• CPC

  • G03C7/3815 - with one heterocyclic ring

• US Classifications

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