3557507

Information

• Patent Grant
• 3557507

• References
• Source

• Patent Number

  3,557,507

• Date Filed

  Not available

• Date Issued

  Tuesday, January 26, 1971
  53 years ago

• CPC

  • E04B1/6175 - with two or more protrusions on each frontal surface
  • E04B2/56 - Load-bearing walls of framework or pillarwork Walls incorporating load-bearing elongated members

• US Classifications

  • 052 - Static structures