3678640

Information

• Patent Grant
• 3678640

• References
• Source

• Patent Number

  3,678,640

• Date Filed

  Not available

• Date Issued

  Tuesday, July 25, 1972
  52 years ago

• CPC

  • B28B11/04 - for coating or applying engobing layers
  • B28B5/02 - on conveyors of the endless-belt or chain type
  • E04B1/54 - Joints substantially without separate connecting elements
  • E04B2/72 - Non-load-bearing walls of elements of relatively thin form with respect to the thickness of the wall
  • E04B2/74 - Removable non-load-bearing partitions Partitions with a free upper edge modular coordination
  • E04B2/822 - Elastic connections
  • E04C2/043 - of plaster
  • E04C2/288 - composed of insulating material and concrete, stone or stone-like material

• US Classifications

  • 052 - Static structures