| 5417487 |
Presence detector |
— |
1995-05-23 |
| D331388 |
Electrical control panel for mobile storage units |
Marvin L. Runge |
1992-12-01 |
| 5121975 |
Fail-safe photoelectric detector |
— |
1992-06-16 |
| 5050941 |
Switch assembly and mobile storage unit using the assembly |
Marvin L. Runge |
1991-09-24 |
| 5044703 |
Limit switch assembly for mobile storage apparatus |
— |
1991-09-03 |
| 5005923 |
Limit switch assembly for mobile storage apparatus |
— |
1991-04-09 |
| 4975804 |
Electrical control module for mobile storage apparatus |
Marvin L. Runge |
1990-12-04 |
| 4947161 |
Light bar |
— |
1990-08-07 |
| 4900284 |
Method of providing a light bar for storage apparatus |
— |
1990-02-13 |
| 4810044 |
Light bar |
— |
1989-03-07 |
| 4759592 |
Movable storage unit control system with system resetting watchdog circuit |
— |
1988-07-26 |
| 4743078 |
Movable storage unit control system |
— |
1988-05-10 |
| 4733923 |
Movable storage unit control system |
— |
1988-03-29 |
| 4650264 |
Control system for vertical storage equipment |
— |
1987-03-17 |
| 4557534 |
Mobile storage systems with leash control |
— |
1985-12-10 |
| 4437711 |
Movable storage unit controls |
— |
1984-03-20 |