1699477

Information

• Patent Grant
• 1699477

• References
• Source

• Patent Number

  1,699,477

• Date Filed

  Not available

• Date Issued

  Tuesday, January 15, 1929
  96 years ago

• CPC

  • E04B5/265 - with one or more hollow cores
  • E04B5/36 - with form units as part of the floor

• US Classifications

  • 052 - Static structures