| 6026602 |
Apparatus and method of indirectly illuminating a sign |
Daniel J. Grondal |
2000-02-22 |
| 5768814 |
Exit sign with removable emergency power pack module |
Edward Kozek |
1998-06-23 |
| 5727867 |
Canopy mounting device for exit signs and the like |
— |
1998-03-17 |
| 5542201 |
Indirectly illuminated sign |
Daniel J. Grondal |
1996-08-06 |
| 5461550 |
Canopy mounting device for exit signs and the like |
— |
1995-10-24 |
| 5428912 |
Indirectly illuminated sign |
Daniel J. Grondal |
1995-07-04 |
| 5272605 |
Canopy mounting device for exit signs and the like |
— |
1993-12-21 |
| 5247756 |
Sign apparatus with insertible directional arrow |
— |
1993-09-28 |
| D314750 |
Male electrical connector |
Joseph S. Wegrzyn |
1991-02-19 |
| D314751 |
Female electrical connector |
Joseph S. Wegrzyn |
1991-02-19 |
| 4885474 |
Connector assembly for plug-in energization and battery activation of an associated electrical apparatus |
Joseph S. Wegrzyn |
1989-12-05 |
| 4561203 |
Opaque sign plaque with dual reflector illumination |
Robert D. MacDonald, Jr., William A. Luca |
1985-12-31 |