John B. Leonard
E1747920
UNEXPLORED
John B. Leonard was an American civil engineer and bridge designer known for his pioneering work on early reinforced concrete bridges in California.
All labels observed (1)
| Label | Occurrences |
|---|---|
| John B. Leonard canonical | 1 |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.