1992501

Information

• Patent Grant
• 1992501

• References
• Source

• Patent Number

  1,992,501

• Date Filed

  Not available

• Date Issued

  Tuesday, February 26, 1935
  90 years ago

• CPC

  • B42F13/42 - Content transfer devices Converting into permanent binders
  • B42F13/32 - the nesting portions of the rods and tubes being straight

• US Classifications

  • 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
  • 281 - Books, strips, and leaves