2128830

Information

• Patent Grant
• 2128830

• References
• Source

• Patent Number

  2,128,830

• Date Filed

  Not available

• Date Issued

  Tuesday, August 30, 1938
  87 years ago

• CPC

  • B61L3/08 - controlling electrically
  • B61L3/04 - controlling mechanically

• US Classifications

  • 246 - Railway switches and signals