3874051

Information

• Patent Grant
• 3874051

• References
• Source

• Patent Number

  3,874,051

• Date Filed

  Not available

• Date Issued

  Tuesday, April 1, 1975
  49 years ago

• CPC

  • E04C3/086 - of the castellated type
  • E04C2003/0413 - being built up from several parts
  • E04C2003/0434 - the open cross-section free of enclosed cavities
  • E04C2003/0473 - U- or C-shaped
  • Y10T29/49625 - Openwork, e.g., a truss, joist, frame, lattice-type or box beam
  • Y10T29/49634 - Beam or girder
  • Y10T29/49796 - Coacting pieces
  • Y10T29/49893 - Peripheral joining of opposed mirror image parts to form a hollow body

• US Classifications

  • 029 - Metal working