3909999

Information

• Patent Grant
• 3909999

• References
• Source

• Patent Number

  3,909,999

• Date Filed

  Not available

• Date Issued

  Tuesday, October 7, 1975
  49 years ago

• CPC

  • E04H7/18 - mainly of concrete
  • E04H7/02 - Containers for fluids or gases Supports therefor
  • E04H12/30 - Water-towers

• US Classifications

  • 052 - Static structures