3801993

Information

• Patent Grant
• 3801993

• References
• Source

• Patent Number

  3,801,993

• Date Filed

  Not available

• Date Issued

  Tuesday, April 9, 1974
  50 years ago

• CPC

  • E04H4/0043 - mainly made of panels
  • E04H4/0062 - characterised by stacked planks or staves

• US Classifications

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