3221464

Information

• Patent Grant
• 3221464

• References
• Source

• Patent Number

  3,221,464

• Date Filed

  Not available

• Date Issued

  Tuesday, December 7, 1965
  59 years ago

• CPC

  • E04B1/19 - Three-dimensional framework structures
  • E04B2001/193 - with flatened connecting parts
  • E04B2001/1933 - of polygonal
  • E04B2001/1942 - Struts adjustable in length
  • E04B2001/1963 - Screw connections with axis at an angle
  • E04B2001/1975 - Frameworks where the struts are directly connected to each other
  • E04B2001/1978 - Frameworks assembled from preformed subframes
  • E04B2001/1987 - triangular grid
  • Y10S52/10 - Polyhedron

• US Classifications

  • 052 - Static structures
  • D25 - Building units and construction elements