1852568

Information

• Patent Grant
• 1852568

• References
• Source

• Patent Number

  1,852,568

• Date Filed

  Not available

• Date Issued

  Tuesday, April 5, 1932
  92 years ago

• CPC

  • B61L7/086 - Common line wire control using relay distributors

• US Classifications

  • 246 - Railway switches and signals