3665664

Information

• Patent Grant
• 3665664

• References
• Source

• Patent Number

  3,665,664

• Date Filed

  Not available

• Date Issued

  Tuesday, May 30, 1972
  52 years ago

• CPC

  • E04C2/386 - with a frame of unreconstituted or laminated wood
  • E04B1/14 - the elements being composed of two or more materials
  • E06B1/56 - Fastening frames to the border of openings or to similar contiguous frames

• US Classifications

  • 052 - Static structures