3716957

Information

• Patent Grant
• 3716957

• References
• Source

• Patent Number

  3,716,957

• Date Filed

  Not available

• Date Issued

  Tuesday, February 20, 1973
  52 years ago

• CPC

  • E04B1/5812 - of substantially I - or H - form

• US Classifications

  • 052 - Static structures