1913634

Information

• Patent Grant
• 1913634

• References
• Source

• Patent Number

  1,913,634

• Date Filed

  Not available

• Date Issued

  Tuesday, June 13, 1933
  91 years ago

• CPC

  • B42D3/004 - Devices for protecting or reinforcing edges or corners of covers
  • Y10T428/24777 - Edge feature

• US Classifications

  • 402 - Binder device releasably engaging aperture or notch of sheet
  • 281 - Books, strips, and leaves
  • 428 - Stock material or miscellaneous articles