2257496

Information

• Patent Grant
• 2257496

• References
• Source

• Patent Number

  2,257,496

• Date Filed

  Not available

• Date Issued

  Tuesday, September 30, 1941
  83 years ago

• CPC

  • A47C7/725 - for illumination
  • A47C1/13 - Indicators Devices for reserving or the like

• US Classifications

  • 340 - Communications: electrical
  • 297 - Chairs and seats