3851486

Information

• Patent Grant
• 3851486

• References
• Source

• Patent Number

  3,851,486

• Date Filed

  Not available

• Date Issued

  Tuesday, December 3, 1974
  50 years ago

• CPC

  • E02B13/02 - Closures for irrigation conduits
  • E02B7/36 - Elevating mechanisms for vertical-lift gates
  • E02F5/02 - for digging trenches or ditches

• US Classifications

  • 405 - Hydraulic and earth engineering
  • 172 - Earth working
  • 414 - Material or article handling