2821950

Information

• Patent Grant
• 2821950

• References
• Source

• Patent Number

  2,821,950

• Date Filed

  Not available

• Date Issued

  Tuesday, February 4, 1958
  67 years ago

• CPC

  • E01F9/612 - for indicating freshly applied road surface markings
  • E01F9/654 - in the form of three-dimensional bodies
  • Y10S52/10 - Polyhedron

• US Classifications

  • 116 - Signals and indicators
  • 040 - Card, picture, or sign exhibiting
  • 052 - Static structures