3810809

Information

• Patent Grant
• 3810809

• References
• Source

• Patent Number

  3,810,809

• Date Filed

  Not available

• Date Issued

  Tuesday, May 14, 1974
  50 years ago

• CPC

  • B42C3/00 - Making booklets, pads, or form sets from multiple webs
  • B31F5/027 - by perforating
  • Y10T156/1304 - Means making hole or aperture in part to be laminated

• US Classifications

  • 156 - Adhesive bonding and miscellaneous chemical manufacture