1633968

Information

• Patent Grant
• 1633968

• References
• Source

• Patent Number

  1,633,968

• Date Filed

  Not available

• Date Issued

  Tuesday, June 28, 1927
  97 years ago

• CPC

  • E06B3/4627 - with the sliding wing flush closing or moving a considerable distance towards the opening when closing
  • Y10T16/379 - Tracks

• US Classifications

  • 049 - Movable or removable closures
  • 016 - Miscellaneous hardware
  • 451 - Abrading