2622137

Information

• Patent Grant
• 2622137

• References
• Source

• Patent Number

  2,622,137

• Date Filed

  Not available

• Date Issued

  Tuesday, December 16, 1952
  72 years ago

• CPC

  • H02B15/00 - Supervisory desks or panels for centralised control or display
  • B61L25/08 - Diagrammatic displays

• US Classifications

  • 340 - Communications: electrical
  • 359 - Optical: systems and elements