3920137

Information

• Patent Grant
• 3920137

• References
• Source

• Patent Number

  3,920,137

• Date Filed

  Not available

• Date Issued

  Tuesday, November 18, 1975
  49 years ago

• CPC

  • E02F3/4135 - with grabs mounted directly on a boom
  • B66C3/16 - by fluid motors
  • B66C3/20 - mounted on, or guided by, jibs
  • E02F3/3677 - allowing movement
  • E02F3/3681 - Rotators

• US Classifications

  • 414 - Material or article handling
  • 037 - Excavating
  • 294 - Handling: hand and hoist-line implements