2116287

Information

• Patent Grant
• 2116287

• References
• Source

• Patent Number

  2,116,287

• Date Filed

  Not available

• Date Issued

  Tuesday, May 3, 1938
  86 years ago

• CPC

  • G09F11/10 - Electrical control therefor

• US Classifications

  • 040 - Card, picture, or sign exhibiting
  • 340 - Communications: electrical