| 5966 | Columns, Glc | Gas Liquid Chromatography System For Clinical Use. | 
| 5966 | Columns, Glc | Gas Liquid Chromatography System For Clinical Use. | 
| K874824 | CAPILLARY COLUMNS FOR GAS CHROMATOGRAPHY | SUPELCO, INC. | 
| K862542 | CAPILLARY COLUMNS FOR GAS CHROMATOGRAPHY | SUPELCO, INC. | 
| K844164 | REACTIFS, IBF ULTROGELS ACA & ULTROGELS A | LKB INSTRUMENTS, INC. | 
| K841712 | CAPILLARY GAS CHROMATOGRAPHIC COLUMNS | SUPELCO, INC. | 
| K791893 | 19091-XXXXX SER. OF GLASS CAPILLARY COL. | HEWLETT-PACKARD CO. | 
| COCHA COLUMN | HUDSON RESPIRATORY CARE, INC. | 1992-07-24 |