3797187

Information

• Patent Grant
• 3797187

• References
• Source

• Patent Number

  3,797,187

• Date Filed

  Not available

• Date Issued

  Tuesday, March 19, 1974
  50 years ago

• CPC

  • F16B5/02 - by means of fastening members using screw-thread
  • E04B1/4171 - Nailable or non-threaded screwable elements
  • E04C2/386 - with a frame of unreconstituted or laminated wood
  • E06B1/6023 - completely hidden between the frame and the border of the opening, at least part of the means being previously fixed to the wall
  • F16B5/00 - Joining sheets or plates

• US Classifications

  • 052 - Static structures