3626700

Information

• Patent Grant
• 3626700

• References
• Source

• Patent Number

  3,626,700

• Date Filed

  Not available

• Date Issued

  Tuesday, December 14, 1971
  53 years ago

• CPC

  • E21D23/0047 - without essential shifting devices

• US Classifications

  • 405 - Hydraulic and earth engineering
  • 248 - Supports