3778324

Information

• Patent Grant
• 3778324

• References
• Source

• Patent Number

  3,778,324

• Date Filed

  Not available

• Date Issued

  Tuesday, December 11, 1973
  51 years ago

• CPC

  • B42D5/001 - perforated or punched sheets
  • B42C9/00 - Applying glue or adhesive peculiar to bookbinding
  • B42C9/0081 - applying adhesive to individual sheets for binding them together
  • B42D5/003 - Note-pads
  • B42D5/008 - with means for engaging sheet perforations or slots
  • B42D5/046 - Suspension devices therefor
  • B42D5/06 - Tear-off calendar blocks
  • Y10T156/1064 - Partial cutting [e.g., grooving or incising]

• US Classifications

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