2159509

Information

• Patent Grant
• 2159509

• References
• Source

• Patent Number

  2,159,509

• Date Filed

  Not available

• Date Issued

  Tuesday, May 23, 1939
  85 years ago

• CPC

  • E01C19/463 - Bituminous mixtures of which at least part of the solid ingredients has previously been deposited on the surface

• US Classifications

  • 404 - Road structure, process, or apparatus