Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875552 | Modular elevator cab construction | Stephen W. Smith, Gilbert E. Londeen | 1989-10-24 |
| 4875553 | Modular elevator cab construction | Stephen W. Smith, Gilbert E. Londeen | 1989-10-24 |