3756625

Information

• Patent Grant
• 3756625

• References
• Source

• Patent Number

  3,756,625

• Date Filed

  Not available

• Date Issued

  Tuesday, September 4, 1973
  51 years ago

• CPC

  • B42B5/08 - by finger, claw or ring-like elements passing through the sheets, quires or signatures
  • B42B5/00 - Permanently attaching together sheets, quires or signatures otherwise than by stitching
  • B42D1/02 - in which the fillings and covers are connected by end papers
  • Y10S412/902 - Heating and pressing

• US Classifications

  • 412 - Bookbinding: process and apparatus
  • 281 - Books, strips, and leaves