| CARESIDE GGT (K020486) | Careside, Inc. | 2002-07-01 |
| DMA GAMMA GLUTAMYLTRANSFERASE (GGT) PROCEDURE (K961919) | Data Medical Associates, Inc. | 1996-07-01 |
| GAMMA-GT (K923509) | Randox Laboratories, Ltd. | 1992-12-03 |
| KING DIAGNOSTICS GAMMA GT REAGENT (K923091) | King Diagnostics, Inc. | 1992-09-09 |
| GGT REAGENT (K905618) | Amresco, Inc. | 1991-02-26 |
| ROCHE COBAS READY GGT REAGENT (K903304) | Roche Diagnostic Systems, Inc. | 1990-10-12 |
| ELITECH GAMMA GT TEST KIT (K901090) | Elite Technology, Inc. | 1990-03-29 |
| WAKO(TM) AUTOKIT GAMMA-GT (K895984) | Wako Chemicals USA, Inc. | 1989-11-08 |
| GAMMA GLUTAMYL TRANSFERASE REAGENT SET (K881239) | Tech-Neal Scientific, Inc. | 1988-05-31 |
| MULTICHEM(R) Y -GLUTAMYLTRANSFERASE (Y -GT) (K874903) | Simmler, Inc. | 1988-02-11 |
| GAMMA GLUTAMYLTRANSFERASE REAGENT (K871979) | Intersect Systems, Inc. | 1987-06-11 |
| VISION (TM) GGTP (K864208) | Abbott Laboratories | 1986-11-24 |
| GAMMA GLUTAMYL TRANSFERASE PROCEDURE (K863586) | Data Medical Associates, Inc. | 1986-10-03 |
| GAMMA GLUTAMYL TRANSFERASE PROCEDURE (K861672) | Data Medical Associates, Inc. | 1986-05-29 |
| G.T. (GAMMA-GLUTAMYL TRANSFERASE) REAGENT (K860723) | Trace Scientific , Ltd. | 1986-04-07 |
| GAMMA GLUTAMYL TRANSPEPTIDASE (GGTP) REAGENT SET (K860348) | Sterling Diagnostics, Inc. | 1986-03-17 |
| GAMMA GLUTAMYL TRANSPEPTIDASE (KINECTIC)REAGENTSET (K855186) | Technostics Intl. | 1986-01-14 |
| GAMMA GLUTAMYL TRANSPEPTIDASE REAGENT SET (K855156) | Technostics Intl. | 1986-01-14 |
| GLUTAMYLTRANSFERASE ASSAY KIT (K850788) | Diagnostic Chemicals, Ltd. (Usa) | 1985-03-19 |
| TOYO JOZO G-GTP TEST (K842104) | Advocacy International, Ltd. | 1984-08-10 |
| WAKO R-GTP C-TEST (K831639) | Wako Chemicals USA, Inc. | 1983-07-18 |
| RAICHEM & GT REAGENT (K823090) | Reagents Applications, Inc. | 1982-11-22 |
| GILCHEM Y-GT REAGENT (K822149) | Gilford Diagnostics | 1982-08-12 |
| ULTRAZYME PLUS 2GT (K821871) | Harleco Diagnostics | 1982-07-14 |
| ULTRAZYME PLUS-GT, #64959 & 65032 (K821468) | Emd Chemicals, Inc. | 1982-06-02 |
| GAMMA-GLUTAMYL TRANSPEPTIDASE (GGT) (K803089) | Environmental Chemical Specialties | 1981-01-02 |
| COULTER ACCU-ZYME IIY-GT REAGENT KIT (K790812) | Coulter Electronics, Inc. | 1979-06-28 |
| SMA/GGT (K781533) | Technicon Instruments Corp. | 1978-10-03 |
| ULTRAZYME PLUS GT (K780099) | Harleco | 1978-03-09 |
| REAGENT SYSTEM (NO. SC 135) (K760711) | Sigma Chemical Co. | 1976-11-30 |
| REAGENT, Y-GT MAX-PACK (K760366) | Calbiochem | 1976-11-01 |
| ASSAY FOR GAMMA GLUTAMYLTRANSFERASE (K760346) | Princeton Biomedix | 1976-10-27 |
| ULTRAZYME GT (K760025) | Harleco | 1976-08-26 |