3877581

Information

• Patent Grant
• 3877581

• References
• Source

• Patent Number

  3,877,581

• Date Filed

  Not available

• Date Issued

  Tuesday, April 15, 1975
  50 years ago

• CPC

  • E02F3/58 - Component parts
  • B66C23/82 - Luffing gear
  • E02F3/47 - with grab buckets

• US Classifications

  • 212 - Traversing hoists
  • 037 - Excavating
  • 267 - Spring devices