1343978

Information

• Patent Grant
• 1343978

• References
• Source

• Patent Number

  1,343,978

• Date Filed

  Not available

• Date Issued

  Tuesday, June 22, 1920
  104 years ago

• CPC

  • G03F1/68 - Preparation processes not covered by groups G03F1/20 - G03F1/50
  • B41M7/00 - After-treatment of prints
  • G03B15/00 - Special procedures for taking photographs Apparatus therefor
  • G03F1/0038 - using chemical means
  • Y10S101/29 - Printing involving a color-forming phenomenon

• US Classifications

  • 427 - Coating processes
  • 101 - Printing