2197456

Information

• Patent Grant
• 2197456

• References
• Source

• Patent Number

  2,197,456

• Date Filed

  Not available

• Date Issued

  Tuesday, April 16, 1940
  84 years ago

• CPC

  • G03C1/56 - Diazo sulfonates

• US Classifications

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