2520817

Information

• Patent Grant
• 2520817

• References
• Source

• Patent Number

  2,520,817

• Date Filed

  Not available

• Date Issued

  Tuesday, August 29, 1950
  74 years ago

• CPC

  • B42F3/00 - Sheets temporarily attached together involving perforations Means therefor Sheet details therefor
  • D06C3/04 - Tentering clips
  • D06C2700/06 - Clips or accessories for tenters or driers
  • Y10T24/463 - for pin having plural penetrating portions
  • Y10T24/4664 - having resilient bridging structure between portion and means
  • Y10T24/4679 - having penetrating portion retractable or of changeable length

• US Classifications

  • 024 - Buckles, buttons, clasps, etc.