2091552

Information

• Patent Grant
• 2091552

• References
• Source

• Patent Number

  2,091,552

• Date Filed

  Not available

• Date Issued

  Tuesday, August 31, 1937
  87 years ago

• CPC

  • E04H9/02 - withstanding earthquake or sinking of ground
  • E04B2/8605 - without spacers

• US Classifications

  • 052 - Static structures