3696578

Information

• Patent Grant
• 3696578

• References
• Source

• Patent Number

  3,696,578

• Date Filed

  Not available

• Date Issued

  Tuesday, October 10, 1972
  52 years ago

• CPC

  • E04F15/02417 - made of box-like elements

• US Classifications

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