3907136

Information

• Patent Grant
• 3907136

• References
• Source

• Patent Number

  3,907,136

• Date Filed

  Not available

• Date Issued

  Tuesday, September 23, 1975
  49 years ago

• CPC

  • E02F3/427 - with mechanical drives
  • E02F3/30 - with a dipper-arm pivoted on a cantilever beam
  • E02F3/32 - working downwardly and towards the machine
  • E02F9/245 - for preventing damage to underground objects during excavation
  • G01V3/104 - using several coupled or uncoupled coils
  • Y10S37/906 - Visual aids and indicators for excavating tool

• US Classifications

  • 414 - Material or article handling
  • 037 - Excavating
  • 324 - Electricity: measuring and testing