2306520

Information

• Patent Grant
• 2306520

• References
• Source

• Patent Number

  2,306,520

• Date Filed

  Not available

• Date Issued

  Tuesday, December 29, 1942
  82 years ago

• CPC

  • E04C2/426 - with continuous bars that remain unconnected at crossing points of the grid pattern

• US Classifications

  • 052 - Static structures