1929389

Information

• Patent Grant
• 1929389

• References
• Source

• Patent Number

  1,929,389

• Date Filed

  Not available

• Date Issued

  Tuesday, October 3, 1933
  91 years ago

• CPC

  • B42F13/32 - the nesting portions of the rods and tubes being straight
  • B42F13/12 - with pillars, posts, rods, or tubes

• US Classifications

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