3905170

Information

• Patent Grant
• 3905170

• References
• Source

• Patent Number

  3,905,170

• Date Filed

  Not available

• Date Issued

  Tuesday, September 16, 1975
  49 years ago

• CPC

  • E04B2/14 - Walls having cavities in, but not between, the elements
  • E04C1/40 - built-up from parts of different materials
  • E04B2002/0208 - of trapezoidal shape
  • E04B2002/0228 - with tongues next to each other on one end surface and grooves next to each other on opposite end surface
  • E04B2002/0267 - Building elements with the appearence of several bricks

• US Classifications

  • 052 - Static structures