1686780

Information

• Patent Grant
• 1686780

• References
• Source

• Patent Number

  1,686,780

• Date Filed

  Not available

• Date Issued

  Tuesday, October 9, 1928
  96 years ago

• CPC

  • B42F13/32 - the nesting portions of the rods and tubes being straight

• US Classifications

  • 281 - Books, strips, and leaves
  • 402 - Binder device releasably engaging aperture or notch of sheet
  • 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener