| Patents for F21S 2 - Systems oflighting devices, not provided for in main groups or , e.g. of modular construction (39,249) |
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| 09/30/1980 | US4225901 Lampchanger for a light |
| 09/16/1980 | US4223377 Electra brick |
| 08/05/1980 | US4215462 Method of making a translucent optical diffuser for a lamp |
| 05/06/1980 | CA1077101A1 Low profile lighted push button switch |
| 04/08/1980 | CA1075216A1 Flexible light bank |
| 04/01/1980 | US4196460 Major surgical light |
| 02/26/1980 | US4190777 Position sensor for rotatable lamp changer turret |
| 01/01/1980 | US4181926 Illuminating fixture for surgical light |
| 12/25/1979 | US4179832 Inflatable displays |
| 12/11/1979 | CA1067872A1 Electric reflector lamp |
| 11/27/1979 | US4176391 Shock isolating lamp assembly |
| 10/09/1979 | CA1063996A1 Element for decoration |
| 09/11/1979 | CA1062220A1 Impact resistant explosion proof lamp comprising encapsulated light source |
| 07/17/1979 | CA1058594A1 Modular block fluorescent lamp suspension system |
| 07/03/1979 | CA1057717A1 Focusing device for sealed type multi-lamp for obtaining shadowless illumination |
| 05/01/1979 | US4152752 Illumination system and apparatus therefor |
| 04/10/1979 | US4149086 UV irradiation device |
| 01/16/1979 | US4135231 Surgical light assembly |
| 01/02/1979 | US4133024 Behind the scene lights |
| 11/28/1978 | US4127892 Lighted element for decoration |
| 10/17/1978 | US4121279 Lamp module |
| 10/10/1978 | US4120024 Lighting installation |
| 09/26/1978 | CA1039375A1 Self-contained fluorescent lamp fixture |
| 09/05/1978 | US4112485 Impact resistant explosion proof lamp comprising encapsulated light source |
| 08/15/1978 | US4107767 Flexible lighting strip |
| 08/08/1978 | US4106078 Light source system |
| 08/08/1978 | US4105293 Lighting installation based on light guide |
| 07/25/1978 | US4102565 Slit lamp microscope |
| 06/20/1978 | US4096379 Modular illumination device |
| 06/06/1978 | US4093973 Illuminated costume jewelry |
| 03/28/1978 | US4081668 Socket-mounting apparatus for lighting devices |
| 02/21/1978 | US4075471 Lamp assembly |
| 01/24/1978 | US4070571 Modular block fluorescent lamp suspension system |
| 01/03/1978 | US4065890 Framework joint |
| 11/01/1977 | US4056701 Low profile lighted push button switch |
| 09/06/1977 | US4047018 Lamp assembly |
| 08/16/1977 | US4042817 Quasi-indirect monosymmetrical lighting system |
| 08/16/1977 | US4042291 Pipe connecting apparatus |
| 08/02/1977 | US4039878 Electric reflector lamp |
| 08/02/1977 | US4039821 Self-contained fluorescent lamp fixture |
| 07/19/1977 | US4037096 Illuminator apparatus using optical reflective methods |
| 05/24/1977 | US4025778 Focusing device for sealed type multi-lamp for obtaining shadowless illumination |
| 05/24/1977 | US4025777 Clinical illumination apparatus |
| 11/02/1976 | US3989983 Light source apparatus |
| 06/29/1976 | US3967107 Operating theater light |
| 05/04/1976 | US3955078 Multi-purpose fishing light |
| 03/30/1976 | US3947115 Optical illumination device for use in copying machine |
| 03/30/1976 | US3947106 Illumination means for use in photocopying machine |
| 01/20/1976 | US3934148 Fluorescent plastic controlled direction lamp |