3420723

Information

• Patent Grant
• 3420723

• References
• Source

• Patent Number

  3,420,723

• Date Filed

  Not available

• Date Issued

  Tuesday, January 7, 1969
  56 years ago

• CPC

  • B42C9/02 - for securing back linings, strips, ribbons or headbands
  • Y10S156/908 - Laminating sheet to entire edge of block and both adjacent opposite surfaces
  • Y10T156/101 - Prior to or during assembly with additional lamina
  • Y10T156/1098 - Feeding of discrete laminae from separate sources

• US Classifications

  • 156 - Adhesive bonding and miscellaneous chemical manufacture
  • 412 - Bookbinding: process and apparatus