2721472

Information

• Patent Grant
• 2721472

• References
• Source

• Patent Number

  2,721,472

• Date Filed

  Not available

• Date Issued

  Tuesday, October 25, 1955
  69 years ago

• CPC

  • E04F11/022 - characterised by the supporting structure
  • E04F2011/0212 - mainly of concrete

• US Classifications

  • 052 - Static structures