3159003

Information

• Patent Grant
• 3159003

• References
• Source

• Patent Number

  3,159,003

• Date Filed

  Not available

• Date Issued

  Tuesday, December 1, 1964
  60 years ago

• CPC

  • E21D23/086 - Details of fixing devices therefor
  • E21D23/0052 - with advancing shifting devices connected therewith
  • E21D23/0069 - without essential advancing shifting devices
  • E21D23/0409 - Aligning or guiding means for the supports or for the constitutive parts of the supports

• US Classifications

  • 405 - Hydraulic and earth engineering
  • 299 - Mining or in situ disintegration of hard material