3305988

Information

• Patent Grant
• 3305988

• References
• Source

• Patent Number

  3,305,988

• Date Filed

  Not available

• Date Issued

  Tuesday, February 28, 1967
  57 years ago

• CPC

  • E04C3/294 - of concrete combined with a girder-like structure extending laterally outside the element
  • E04C3/18 - with metal or other reinforcements or tensioning members
  • E04F21/0007 - for mounting doors, windows or frames; their fitting

• US Classifications

  • 052 - Static structures