3490243

Information

• Patent Grant
• 3490243

• References
• Source

• Patent Number

  3,490,243

• Date Filed

  Not available

• Date Issued

  Tuesday, January 20, 1970
  54 years ago

• CPC

  • E21D23/0409 - Aligning or guiding means for the supports or for the constitutive parts of the supports
  • E21D23/0026 - comprising three walking elements
  • E21D23/0069 - without essential advancing shifting devices

• US Classifications

  • 405 - Hydraulic and earth engineering