3311331

Information

• Patent Grant
• 3311331

• References
• Source

• Patent Number

  3,311,331

• Date Filed

  Not available

• Date Issued

  Tuesday, March 28, 1967
  57 years ago

• CPC

  • D03D49/025 - Ground supports
  • F16F1/376 - having projections, studs, serrations or the like on at least one surface

• US Classifications

  • 248 - Supports
  • 267 - Spring devices