| SPOTTEST NITRATE REAGENT A (K840579) | Difco Laboratories, Inc. | 1984-02-27 |
| SPOTTEST NITRATE REAGENT B (K840580) | Difco Laboratories, Inc. | 1984-02-27 |
| SPOTTEST OXIDASE REAGENT (K840575) | Difco Laboratories, Inc. | 1984-02-27 |
| DIFFERENTIATION DISKS HIPPURATE (K834581) | Difco Laboratories, Inc. | 1984-02-13 |
| AZLOCILLIN 75MCG. SENSITIVITY DISCS (K833414) | Difco Laboratories, Inc. | 1984-01-11 |
| CEFTIZOXIME 30 MCG SENSITIVITY DISCS (K833416) | Difco Laboratories, Inc. | 1984-01-11 |
| TICARCILLIN 75MCG. SENSITIVITY DISCS (K833415) | Difco Laboratories, Inc. | 1984-01-11 |
| BACTROL TB SLIDE (K833900) | Difco Laboratories, Inc. | 1983-12-22 |
| BACTROL GRAM SLIDE (K833901) | Difco Laboratories, Inc. | 1983-12-08 |
| DEFAZOLIN 30MCG. SENSITIVITY DISCS (K832910) | Difco Laboratories, Inc. | 1983-11-14 |
| CEFUROXIME 30MCG. SENSITIVITY DISCS (K832909) | Difco Laboratories, Inc. | 1983-10-14 |
| NETILMICIN 30MCG. SENSITIVITY DISCS (K830956) | Difco Laboratories, Inc. | 1983-04-27 |
| CEFOPERAZONE 75MCG SENSIT- DISCS (K821262) | Difco Laboratories, Inc. | 1982-06-22 |
| PIPERACILLIN 100 MCG. SENSITIVITY DISCS (K812524) | Difco Laboratories, Inc. | 1982-01-28 |
| MOXALACTAM 30 MCG. SENSITIVITY DISCS (K812228) | Difco Laboratories, Inc. | 1981-10-28 |
| MEZLOCILLIN 75 MCG. SENSITIVITY DISCS (K812525) | Difco Laboratories, Inc. | 1981-10-02 |
| CEFOTAXIME 30 MCG. SENSITIVITY DISCS. (K810546) | Difco Laboratories, Inc. | 1981-03-31 |
| MINOCYCLINE 30 MCG. SENSITIVITY DISCS (K802178) | Difco Laboratories, Inc. | 1980-10-10 |
| TRIMETHOPRIM 5MCG. SENSITIVITY DISCS (K801474) | Difco Laboratories, Inc. | 1980-08-13 |
| CINOXACIN 100 MCG. SENSITIVITY DISCS (K801473) | Difco Laboratories, Inc. | 1980-07-28 |
| BACTO-HATTS (K791897) | Difco Laboratories, Inc. | 1979-11-13 |