3197966

Information

• Patent Grant
• 3197966

• References
• Source

• Patent Number

  3,197,966

• Date Filed

  Not available

• Date Issued

  Tuesday, August 3, 1965
  59 years ago

• CPC

  • E21D23/0047 - without essential shifting devices
  • E21D23/0052 - with advancing shifting devices connected therewith
  • E21D23/0069 - without essential advancing shifting devices
  • E21F13/086 - Armoured conveyors shifting devices

• US Classifications

  • 405 - Hydraulic and earth engineering