3478681

Information

• Patent Grant
• 3478681

• References
• Source

• Patent Number

  3,478,681

• Date Filed

  Not available

• Date Issued

  Tuesday, November 18, 1969
  55 years ago

• CPC

  • B41L11/00 - Apparatus for directly duplicating from hectographic masters in mirror image
  • B41P2700/12 - with single master plates

• US Classifications

  • 101 - Printing
  • 226 - Advancing material of indeterminate length