| Relationships | Role | Relationship Start | Relationship End |
| Walter E. Heller Industries, Inc. | Parent | 12/31/1976 | 8/7/1979 |
| Walter E. Heller International Corporation | Parent | 7/31/1973 | 12/30/1976 |
| Relationships | Role | Relationship Start | Relationship End |
| Walter E. Heller Industries, Inc. | Parent | 12/31/1976 | 8/7/1979 |
| Walter E. Heller International Corporation | Parent | 7/31/1973 | 12/30/1976 |