2260423

Information

• Patent Grant
• 2260423

• References
• Source

• Patent Number

  2,260,423

• Date Filed

  Not available

• Date Issued

  Tuesday, October 28, 1941
  83 years ago

• CPC

  • E21D1/08 - while moving the lining downwards

• US Classifications

  • 405 - Hydraulic and earth engineering
  • 220 - Receptacles