1998651

Information

• Patent Grant
• 1998651

• References
• Source

• Patent Number

  1,998,651

• Date Filed

  Not available

• Date Issued

  Tuesday, April 23, 1935
  89 years ago

• CPC

  • B42B5/02 - by eyelets
  • B42D5/008 - with means for engaging sheet perforations or slots
  • B42D5/02 - Form sets

• US Classifications

  • 281 - Books, strips, and leaves
  • 462 - Books, strips, and leaves for manifolding