2498406

Information

• Patent Grant
• 2498406

• References
• Source

• Patent Number

  2,498,406

• Date Filed

  Not available

• Date Issued

  Tuesday, February 21, 1950
  74 years ago

• CPC

  • G09B23/182 - for components

• US Classifications

  • 434 - Education and demonstration
  • 220 - Receptacles
  • 248 - Supports