2690275

Information

• Patent Grant
• 2690275

• References
• Source

• Patent Number

  2,690,275

• Date Filed

  Not available

• Date Issued

  Tuesday, September 28, 1954
  70 years ago

• CPC

  • F22B37/221 - Covers for drums, collectors, manholes or the like
  • Y10T292/205 - Ring

• US Classifications

  • 220 - Receptacles
  • 292 - Closure fasteners