| SPAPLUS ANALYZER (K100455) | The Binding Site | 2010-09-03 |
| TINA-QUANT COMPLEMENT C4 TEST SYSTEM (K012359) | Roche Diagnostics Corp. | 2001-11-29 |
| WAKO AUTOKIT C4 (K010325) | Wako Chemicals USA, Inc. | 2001-06-25 |
| RANDOX COMPLEMENT C4 (K000468) | Randox Laboratories, Ltd. | 2000-03-27 |
| DIMENSION C4 FLEX REAGENT CARTRIDGE (K994293) | Dade Behring, Inc. | 2000-03-01 |
| C4 MININEPH ANTISERUM (K981785) | The Binding Site, Ltd. | 1999-12-20 |
| K-ASSAY C4 (K993481) | Kamiya Biomedical Co. | 1999-11-29 |
| C4 (K983356) | Abbott Laboratories | 1998-11-04 |
| N-ASSAY TIA C4 TEST KIT (K964297) | Crestat Diagnostics, Inc. | 1997-07-14 |
| N-ASSAY TIA MULTI V-NL (K964300) | Crestat Diagnostics, Inc. | 1997-07-14 |
| OLYMPUS C4 IMMUNOTURBIDIMETRIC REAGENT (K962582) | Olympus America, Inc. | 1996-10-18 |
| QUANTEX C4 (K962198) | Instrumentation Laboratory CO | 1996-09-26 |
| IL TEST COMPLEMENT 4 (K920010) | Instrumentation Laboratory CO | 1992-03-13 |
| RAICHEM SPIA C4 REAGENT (K911899) | Reagents Applications, Inc. | 1991-05-09 |
| EZ COMPLEMENT C4 (K892129) | Diamedix Corp. | 1989-04-14 |
| SPQ(TM) ANTIBODY REAGENT SET II FOR C4 (K890564) | Atlantic Antibodies | 1989-02-17 |
| COMPLEMENT C4 FOR THE TECHNICON DPA-1(TM) SYSTEM (K882621) | Technicon Instruments Corp. | 1988-07-08 |
| QM300 C4 ANTIBODY PACK (K872599) | Kallestad Diag, A Div. of Erbamont, Inc. | 1987-07-23 |
| PRECIMAT(R) C4 (K871023) | Boehringer Mannheim Corp. | 1987-05-14 |
| TINA-QUANT(R) (A) C4 (K870931) | Boehringer Mannheim Corp. | 1987-03-24 |
| QUANTIMETRIC PLUS C4 REAGENT KIT (K855012) | Kallestad Laboratories, Inc. | 1986-02-26 |
| GILFORD C4 COMPLEMENT REAGENT (K853468) | Gilford | 1985-09-16 |
| SPQ TEST SYSTEM FOR COMPLEMENT C4 (K850585) | Applications Lab | 1985-03-01 |
| C4 ANTIGEN ANTIBODY CONTROL (K834605) | Technicon Instruments Corp. | 1984-01-24 |
| RABBIT ANTISERUM TO HUMAN C4 (K831906) | Dako Corp. | 1983-07-19 |
| FIAX COMPLEMENT C4 TEST KIT (K830669) | Intl. Diagnostic Technology | 1983-04-08 |
| IMMUNOGL. FRCT. OF RABBIT ANTISER.-C4 (K812490) | Dako Corp. | 1981-09-23 |
| SCRIPPSYSTEM C4 RID KIT (K810502) | Scripps-Miles, Inc. | 1981-04-08 |
| GOAT ANTI-HUMAN COMPLEMENT C4 (K802196) | Protos Laboratories | 1980-10-31 |
| COMPLEMENT C4 NEPHELOMETRIC ASSAY (K801361) | J.T. Baker Chemical Co. | 1980-06-30 |
| RADIAL IMMUNODIFFUSION KIT-COMP. 3 (K772073) | Gelman Instrument Co. | 1978-02-03 |
| COMPLEMENT C4 NEPHELOMETRIC ASSAY (K772247) | Kallestad Laboratories, Inc. | 1977-12-22 |
| HUMAN C4 COMPLEMENT CONTROL SERUM (K772004) | G.D. Searle and Co. | 1977-11-03 |
| PLATES FOR HUMAN C4 COMPLEMENT (K772002) | G.D. Searle and Co. | 1977-11-02 |