3571989

Information

• Patent Grant
• 3571989

• References
• Source

• Patent Number

  3,571,989

• Date Filed

  Not available

• Date Issued

  Tuesday, March 23, 1971
  53 years ago

• CPC

  • E05F3/225 - mounted at the bottom of wings
  • E05F3/00 - Closers or openers with braking devices
  • E05Y2201/10 - Covers Housings
  • E05Y2600/41 - Concealed
  • E05Y2600/452 - in or on the floor or wall

• US Classifications

  • 052 - Static structures