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| Number | Title | Issue Date |
| 4814955 | Swivel device for mounting a spotlight A swivel device for mounting a spotlight comprises vertical means for adjustable rotation of the spotlight around a vertical axis over a maximum arc of more than 360° without twisting damage to electrical wires passing through an interior portion of the ... | 03/21/1989 |
| 4764127 | Electrical connector for high-level audio signals An electrical connector for an audio product, such as an amplifier and a loudspeaker, comprises a rod-shaped body and a clamping sleeve; the rod-shaped body having a rear portion, a front portion and an intermediate portion; the rear portion having an axi... | 08/16/1988 |
| 4671170 | Air diffuser An improved air diffuser or air boot has a unique incremental air dampering and air pattern control mechanism, namely a plurality of independent adjacent flat damper plates or blades which are adjustably attached to an inner surface of a bottom ledge just... | 06/09/1987 |
| 4364626 | Electrical connector An electrical connector has electrically conducting contact members with interengaging ends for interengagement with other contact members; and an outer insulating support housing. The support housing is in the form of a base and an array of projections e... | 12/21/1982 |
| 4209822 | Light Polarizing illumination device A desk or other work table has a long horizontal work surface above which is mounted one or more suitably housed linear fluorescent lamps extending for about the length of the work surface and at about eye level. A plurality of side-by-side light polarizi... | 06/24/1980 |