1989513

Information

• Patent Grant
• 1989513

• References
• Source

• Patent Number

  1,989,513

• Date Filed

  Not available

• Date Issued

  Tuesday, January 29, 1935
  90 years ago

• CPC

  • E06B9/582 - Means to increase gliss, light, sound or thermal insulation
  • E06B9/581 - Means to prevent or induce disengagement of shutter from side rails
  • E06B2009/1594 - attached to outer surface of slat

• US Classifications

  • 160 - Flexible or portable closure, partition, or panel