2175597

Information

• Patent Grant
• 2175597

• References
• Source

• Patent Number

  2,175,597

• Date Filed

  Not available

• Date Issued

  Tuesday, October 10, 1939
  85 years ago

• CPC

  • B61L3/222 - Arrangements on the track only

• US Classifications

  • 246 - Railway switches and signals
  • 123 - Internal-combustion engines