2729945

Information

• Patent Grant
• 2729945

• References
• Source

• Patent Number

  2,729,945

• Date Filed

  Not available

• Date Issued

  Tuesday, January 10, 1956
  69 years ago

• CPC

  • E21D17/086 - or articulated type
  • Y10T403/32606 - Pivoted

• US Classifications

  • 405 - Hydraulic and earth engineering
  • 248 - Supports
  • 299 - Mining or in situ disintegration of hard material
  • 403 - Joints and connections