1897839

Information

• Patent Grant
• 1897839

• References
• Source

• Patent Number

  1,897,839

• Date Filed

  Not available

• Date Issued

  Tuesday, February 14, 1933
  91 years ago

• CPC

  • B42C5/00 - Preparing the edges or backs of leaves or signatures for binding
  • B42C5/02 - by rounding or backing
  • B42C11/045 - Folding end sheets, attaching end sheets to book blocks

• US Classifications

  • 281 - Books, strips, and leaves