3491660

Information

• Patent Grant
• 3491660

• References
• Source

• Patent Number

  3,491,660

• Date Filed

  Not available

• Date Issued

  Tuesday, January 27, 1970
  55 years ago

• CPC

  • E01F9/541 - Kerbs
  • E01F9/646 - extensible, collapsible or pivotable

• US Classifications

  • 404 - Road structure, process, or apparatus
  • 047 - Plant husbandry