2253520

Information

• Patent Grant
• 2253520

• References
• Source

• Patent Number

  2,253,520

• Date Filed

  Not available

• Date Issued

  Tuesday, August 26, 1941
  83 years ago

• CPC

  • E06B9/48 - by clasps or buttons

• US Classifications

  • 160 - Flexible or portable closure, partition, or panel
  • 060 - Power plants