| Number | Name | Date | Kind |
|---|---|---|---|
| D91508 | Blackburn | Feb 1934 | |
| D118935 | Green | Feb 1940 | |
| 1913174 | Stephenson | Jun 1933 | |
| 1947515 | Blackburn | Feb 1934 | |
| 1971342 | Goldsby | Aug 1934 | |
| 2567958 | Mummert | Sep 1951 | |
| 2715953 | Marrow | Aug 1955 | |
| 3295265 | Hida | Jan 1967 | |
| 3685228 | Pauley | Aug 1972 | |
| 3916587 | Cox | Nov 1975 | |
| 4202147 | Krogh | May 1980 | |
| 4232495 | Lin et al. | Nov 1980 | |
| 4313457 | Cliff | Feb 1982 | |
| 4327531 | Cazaly et al. | May 1982 |
| Number | Date | Country |
|---|---|---|
| 344569 | Nov 1936 | ITX |
| 574513 | Sep 1977 | SUX |
| Entry |
|---|
| Engineering News Record; Jul. 29, 1943; pp. 68-71. |
| "Hydro Pillar"; Pittsburgh-Des Moines Steel Co.; Apr. 1971. |