2991104

Information

• Patent Grant
• 2991104

• References
• Source

• Patent Number

  2,991,104

• Date Filed

  Not available

• Date Issued

  Tuesday, July 4, 1961
  63 years ago

• CPC

  • E21D15/43 - Details of wedges
  • E21D17/086 - or articulated type
  • Y10T403/32319 - including pivot stud
  • Y10T403/32409 - Members locked in axial alignment

• US Classifications

  • 403 - Joints and connections
  • 405 - Hydraulic and earth engineering