3440663

Information

• Patent Grant
• 3440663

• References
• Source

• Patent Number

  3,440,663

• Date Filed

  Not available

• Date Issued

  Tuesday, April 29, 1969
  55 years ago

• CPC

  • A61F11/14 - external
  • Y10T24/4555 - and encircling hollow central area

• US Classifications

  • 002 - Apparel
  • 024 - Buckles, buttons, clasps, etc.