United States railroad standard
C17191
concept
United States railroad standard: A conceptual class representing the set of technical, operational, and safety specifications that govern the design, construction, and operation of railroads within the United States.
All labels observed (1)
| Label | Occurrences |
|---|---|
| United States railroad standard canonical | 1 |
Instances (1)
| Instance | Via concept surface |
|---|---|
| USRA standard freight car designs | — |