3869840

Information

• Patent Grant
• 3869840

• References
• Source

• Patent Number

  3,869,840

• Date Filed

  Not available

• Date Issued

  Tuesday, March 11, 1975
  49 years ago

• CPC

  • E06B1/08 - composed of several parts with respect to the cross-section of the frame itself
  • E06B1/02 - Base frames

• US Classifications

  • 052 - Static structures