3393522

Information

• Patent Grant
• 3393522

• References
• Source

• Patent Number

  3,393,522

• Date Filed

  Not available

• Date Issued

  Tuesday, July 23, 1968
  56 years ago

• CPC

  • E21D23/0409 - Aligning or guiding means for the supports or for the constitutive parts of the supports
  • E21D23/0052 - with advancing shifting devices connected therewith

• US Classifications

  • 405 - Hydraulic and earth engineering