3648609

Information

• Patent Grant
• 3648609

• References
• Source

• Patent Number

  3,648,609

• Date Filed

  Not available

• Date Issued

  Tuesday, March 14, 1972
  52 years ago

• CPC

  • B41M5/04 - using solvent-soluble dyestuffs on the master sheets
  • B41L9/10 - with rotary cylinders carrying sheets of hectographic gelatin-paper
  • G03B27/306 - Heat development

• US Classifications

  • 101 - Printing
  • 250 - Radiant energy