2664147

Information

• Patent Grant
• 2664147

• References
• Source

• Patent Number

  2,664,147

• Date Filed

  Not available

• Date Issued

  Tuesday, December 29, 1953
  71 years ago

• CPC

  • A47B39/10 - Devices for holding pupils upright

• US Classifications

  • 297 - Chairs and seats
  • 108 - Horizontally supported planar surfaces
  • 312 - Supports: cabinet structure