3214809

Information

• Patent Grant
• 3214809

• References
• Source

• Patent Number

  3,214,809

• Date Filed

  Not available

• Date Issued

  Tuesday, November 2, 1965
  59 years ago

• CPC

  • A61F9/06 - Masks, shields or hoods for welders
  • Y10T24/1427 - Worm and tooth
  • Y10T24/1431 - Radial worm band clamp
  • Y10T24/2187 - Rack and pinion and circular tighteners
  • Y10T74/18816 - Curvilinear rack
  • Y10T292/212 - With expanding or contracting means

• US Classifications

  • 024 - Buckles, buttons, clasps, etc.
  • 002 - Apparel
  • 074 - Machine element or mechanism
  • 292 - Closure fasteners
  • 351 - Optics: eye examining, vision testing and correcting