|
| US4312490 | 16 Jun 1978 | 26 Jan 1982 | | Music stand extender |
| US4426009 | 26 Jan 1981 | 17 Jan 1984 | | System for positioning containerized merchandise on a shelf |
| US4570804 | 14 Jun 1984 | 18 Feb 1986 | | Adjustable tray for video display terminals |
| US4576293 | 9 Feb 1984 | 18 Mar 1986 | | Produce support tray assemblage |
| US4602570 | 6 Jun 1983 | 29 Jul 1986 | Frito-Lay, Inc. | Extendable shelf for a display rack |
| US4646658 | 1 Jun 1982 | 3 Mar 1987 | Frito-Lay, Inc. | Extendable shelf for a display rack |
| US4832209 | 16 Dec 1987 | 23 May 1989 | Fritz Schafer Gesellschaft mit Beschrankter Haftung | Shelf of laminated material |
