2321197

Information

• Patent Grant
• 2321197

• References
• Source

• Patent Number

  2,321,197

• Date Filed

  Not available

• Date Issued

  Tuesday, June 8, 1943
  81 years ago

• CPC

  • E01C9/10 - Steel gratings ; Gratings made of material other than steel

• US Classifications

  • 404 - Road structure, process, or apparatus
  • 052 - Static structures