3698147

Information

• Patent Grant
• 3698147

• References
• Source

• Patent Number

  3,698,147

• Date Filed

  Not available

• Date Issued

  Tuesday, October 17, 1972
  52 years ago

• CPC

  • E04B2/62 - the members being formed of two or more elements in side-by-side relationship
  • E04B1/6141 - the connection made by an additional locking key
  • E04B1/6175 - with two or more protrusions on each frontal surface
  • E04B1/6179 - with protrusions and recesses on each frontal surface
  • E04B2/68 - made by filling-up wall cavities

• US Classifications

  • 052 - Static structures