1634659

Information

• Patent Grant
• 1634659

• References
• Source

• Patent Number

  1,634,659

• Date Filed

  Not available

• Date Issued

  Tuesday, July 5, 1927
  98 years ago

• CPC

  • G03F7/14 - Production of collotype printing forms

• US Classifications

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