2221764

Information

• Patent Grant
• 2221764

• References
• Source

• Patent Number

  2,221,764

• Date Filed

  Not available

• Date Issued

  Tuesday, November 19, 1940
  84 years ago

• CPC

  • E01C19/255 - by vehicles placed on the rolling device; provided with means for facilitating rapid road transport

• US Classifications

  • 404 - Road structure, process, or apparatus
  • 089 - Ordnance
  • 172 - Earth working