1609091

Information

• Patent Grant
• 1609091

• References
• Source

• Patent Number

  1,609,091

• Date Filed

  Not available

• Date Issued

  Tuesday, November 30, 1926
  99 years ago

• CPC

  • G03F7/14 - Production of collotype printing forms

• US Classifications

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