3376707

Information

• Patent Grant
• 3376707

• References
• Source

• Patent Number

  3,376,707

• Date Filed

  Not available

• Date Issued

  Tuesday, April 9, 1968
  56 years ago

• CPC

  • E21D23/0052 - with advancing shifting devices connected therewith
  • E21D17/0206 - Hydraulically operated extension devices
  • E21D23/0073 - with advancing shifting devices connected therewith

• US Classifications

  • 405 - Hydraulic and earth engineering
  • 248 - Supports