3900272

Information

• Patent Grant
• 3900272

• References
• Source

• Patent Number

  3,900,272

• Date Filed

  Not available

• Date Issued

  Tuesday, August 19, 1975
  49 years ago

• CPC

  • E01C19/233 - the rigid rolling elements being vibrated or subjected to impacts

• US Classifications

  • 404 - Road structure, process, or apparatus