3881287

Information

• Patent Grant
• 3881287

• References
• Source

• Patent Number

  3,881,287

• Date Filed

  Not available

• Date Issued

  Tuesday, May 6, 1975
  49 years ago

• CPC

  • E06B1/38 - for shop, show, or like large windows
  • E06B1/70 - Sills Thresholds
  • E06B3/60 - of clamping cleats of metal
  • E06B3/68 - Window bars
  • E06B3/9636 - for frame members having longitudinal screw receiving channels

• US Classifications

  • 052 - Static structures