3269035

Information

• Patent Grant
• 3269035

• References
• Source

• Patent Number

  3,269,035

• Date Filed

  Not available

• Date Issued

  Tuesday, August 30, 1966
  58 years ago

• CPC

  • A47B97/06 - with means for balancing weight of blackboards or the like
  • Y10T74/2158 - Spring

• US Classifications

  • 434 - Education and demonstration
  • 074 - Machine element or mechanism