3515220

Information

• Patent Grant
• 3515220

• References
• Source

• Patent Number

  3,515,220

• Date Filed

  Not available

• Date Issued

  Tuesday, June 2, 1970
  54 years ago

• CPC

  • B62D51/04 - the driver walking
  • A01B29/02 - with smooth surface

• US Classifications

  • 172 - Earth working