3197179

Information

• Patent Grant
• 3197179

• References
• Source

• Patent Number

  3,197,179

• Date Filed

  Not available

• Date Issued

  Tuesday, July 27, 1965
  59 years ago

• CPC

  • E21D15/24 - with axial screw-and-nut, rack-and-worm, or like mechanism
  • E21D11/40 - Devices or apparatus specially adapted for handling or placing units of linings or supporting units for tunnels or galleries

• US Classifications

  • 254 - Implements or apparatus for applying pushing or pulling force
  • 248 - Supports