2137509

Information

• Patent Grant
• 2137509

• References
• Source

• Patent Number

  2,137,509

• Date Filed

  Not available

• Date Issued

  Tuesday, November 22, 1938
  87 years ago

• CPC

  • A47B39/04 - Collapsible or tip-up forms
  • A47B39/00 - School forms Benches or forms combined with desks

• US Classifications

  • 297 - Chairs and seats