3720566

Information

• Patent Grant
• 3720566

• References
• Source

• Patent Number

  3,720,566

• Date Filed

  Not available

• Date Issued

  Tuesday, March 13, 1973
  51 years ago

• CPC

  • B42C7/00 - Manufacturing bookbinding cases or covers of books or loose-leaf binders
  • B42C9/0062 - the tape being fed from a roller
  • B42C9/0075 - with a continuous flow of stacks of sheets
  • Y10S156/908 - Laminating sheet to entire edge of block and both adjacent opposite surfaces
  • Y10T156/1715 - Means joining indefinite length work edge to edge

• US Classifications

  • 156 - Adhesive bonding and miscellaneous chemical manufacture
  • 281 - Books, strips, and leaves