1668673

Information

• Patent Grant
• 1668673

• References
• Source

• Patent Number

  1,668,673

• Date Filed

  Not available

• Date Issued

  Tuesday, May 8, 1928
  96 years ago

• CPC

  • E04C3/09 - at least partly of bent or otherwise deformed strip- or sheet-like material
  • E04B2001/1927 - of essentially circular cross section
  • E04B2001/1933 - of polygonal
  • E04B2001/1951 - uninterrupted struts situated in the outer planes of the framework
  • E04B2001/1954 - uninterrupted struts connecting alternately with the outer planes of the framework
  • E04B2001/1984 - rectangular
  • E04B2001/199 - Details of roofs, floors or walls supported by the framework
  • E04C2003/0491 - the truss elements being located in one single surface or in several parallel surfaces
  • E04C2003/0495 - the truss elements being located in several non-parallel surfaces

• US Classifications

  • 052 - Static structures