1643193

Information

• Patent Grant
• 1643193

• References
• Source

• Patent Number

  1,643,193

• Date Filed

  Not available

• Date Issued

  Tuesday, September 20, 1927
  97 years ago

• CPC

  • B42F13/42 - Content transfer devices Converting into permanent binders

• US Classifications

  • 402 - Binder device releasably engaging aperture or notch of sheet