2424541

Information

• Patent Grant
• 2424541

• References
• Source

• Patent Number

  2,424,541

• Date Filed

  Not available

• Date Issued

  Tuesday, July 29, 1947
  77 years ago

• CPC

  • B42D9/001 - Devices for indicating a page in a book

• US Classifications

  • 116 - Signals and indicators
  • 281 - Books, strips, and leaves