2312994

Information

• Patent Grant
• 2312994

• References
• Source

• Patent Number

  2,312,994

• Date Filed

  Not available

• Date Issued

  Tuesday, March 2, 1943
  81 years ago

• CPC

  • E04B2/28 - Walls having cavities between, but not in, the elements Walls of elements each consisting of two or more parts kept in distance by means of spacers, all parts being solid
  • E04B2002/0297 - of which the width is less than the wall thickness

• US Classifications

  • 052 - Static structures