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| US4320825 | 28 Ene 1980 | 23 Mar 1982 | Veda, Inc. | Material conveying apparatus | | US4437637 | 11 Dic 1980 | 20 Mar 1984 | Veda, Inc. | Support stand | | US4724953 | 15 Oct 1986 | 16 Feb 1988 | | Food conveyor apparatus | | US5078250 | 7 Ene 1991 | 7 Ene 1992 | Sinco, Inc. | Universal safety guard assembly for a conveyor |
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