Number | Name | Date | Kind |
---|---|---|---|
D290393 | Stevens et al. | Jun 1987 | |
D290395 | Stevens et al. | Jun 1987 | |
D322322 | Markle et al. | Dec 1991 | |
4422771 | Earhart et al. | Dec 1983 | |
5094542 | Engels et al. | Mar 1992 |
Entry |
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The Cole-Parmer Catalog 1991-1992 "New Lightnin Lab Master II Mixers" p. 537 @1990. |