3855731

Information

• Patent Grant
• 3855731

• References
• Source

• Patent Number

  3,855,731

• Date Filed

  Not available

• Date Issued

  Tuesday, December 24, 1974
  50 years ago

• CPC

  • A47G27/0425 - for fixing near a door
  • E06B7/20 - automatically withdrawn when the wing is opened
  • E06B7/28 - Other arrangements on doors or windows

• US Classifications

  • 049 - Movable or removable closures
  • 015 - Brushing, scrubbing, and general cleaning