3648424

Information

• Patent Grant
• 3648424

• References
• Source

• Patent Number

  3,648,424

• Date Filed

  Not available

• Date Issued

  Tuesday, March 14, 1972
  52 years ago

• CPC

  • E06B1/04 - Frames for doors, windows, or the like to be fixed in openings
  • E06B3/9885 - Mitre joints
  • E06B7/2318 - by applying over- or under-pressure

• US Classifications

  • 052 - Static structures