1803158

Information

• Patent Grant
• 1803158

• References
• Source

• Patent Number

  1,803,158

• Date Filed

  Not available

• Date Issued

  Tuesday, April 28, 1931
  93 years ago

• CPC

  • E04B2/14 - Walls having cavities in, but not between, the elements
  • E04B2002/0258 - Gripping or handling aids

• US Classifications

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