2705414

Information

• Patent Grant
• 2705414

• References
• Source

• Patent Number

  2,705,414

• Date Filed

  Not available

• Date Issued

  Tuesday, April 5, 1955
  69 years ago

• CPC

  • E04B2/28 - Walls having cavities between, but not in, the elements Walls of elements each consisting of two or more parts kept in distance by means of spacers, all parts being solid
  • E04B2002/0208 - of trapezoidal shape
  • E04B2002/0265 - Building elements for making arcuate walls
  • E04B2002/0297 - of which the width is less than the wall thickness

• US Classifications

  • 138 - Pipes and tubular conduits
  • 052 - Static structures
  • 110 - Furnaces
  • 220 - Receptacles