1794628

Information

• Patent Grant
• 1794628

• References
• Source

• Patent Number

  1,794,628

• Date Filed

  Not available

• Date Issued

  Tuesday, March 3, 1931
  93 years ago

• CPC

  • B61L7/085 - Common line wire control using synchronous distributors

• US Classifications

  • 246 - Railway switches and signals