3706503

Information

• Patent Grant
• 3706503

• References
• Source

• Patent Number

  3,706,503

• Date Filed

  Not available

• Date Issued

  Tuesday, December 19, 1972
  52 years ago

• CPC

  • B42F13/165 - with flexible or resilient claws or rings

• US Classifications

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