| # | Industry | |
|---|---|---|
| #1 | Medical technology | |
| #2 | Optics | |
| #3 | Surface technology and coating | |
| #4 | Machine tools | |
| #5 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Diagnosis and surgery | |
| #2 | Optical systems | |
| #3 | Coating metallic material | |
| #4 | Grinding or polishing devices | |
| #5 | Vehicle windows, roofs and doors |
| # | Name | Total Patents |
|---|---|---|
| #1 | Guilbert Nicholas R Jr | 6 |
| #2 | Arbogast George J | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA491163A | Operating means for sliding elevator doors | |
| CA840273A | Container type automatic loading and discharging system for dumbwaiters | |
| CA802013A | Orienting and positioning apparatus for article handling | |
| CA772957A | Loading and unloading apparatus for dumb waiters and the like | |
| CA737757A | Unloading apparatus for dumb waiters and the like | |
| CA837804A | Drawbridge |