| CENTRAL STATION MONITORING SYSTEMS (K811121) | Cambridge Instruments, Inc. | 1981-06-30 |
| CAMPBRIDGE COMPUTRACE (K811062) | Cambridge Instruments, Inc. | 1981-05-29 |
| 4-CHANNEL ECG TELEMETRY MON. SYST. #3045 (K803229) | Cambridge Instruments, Inc. | 1981-01-13 |
| CAMBRIDGE CARDIAC DIAGNOSTIC SYSTEM (K801224) | Cambridge Instruments, Inc. | 1980-06-26 |
| CAMBRIDGE VS-550 ELECTROCARDIOGRAPH (K800566) | Cambridge Instruments, Inc. | 1980-04-08 |
| TREADMILL MODEL 3060 (K792661) | Cambridge Instruments, Inc. | 1980-02-19 |
| SCINTISTRESS SYSTEM (K791201) | Cambridge Instruments, Inc. | 1979-09-17 |
| CARDIOCASSETTE II, AMBULATORY ECG SYSTEM (K790509) | Cambridge Instruments, Inc. | 1979-03-23 |
| 3038 OPTION B-COMPUT. TRANS. TERMINAL (K761318) | Cambridge Instruments, Inc. | 1977-01-06 |
| MODEL 3044 3-CHANNEL STRESS TEST SYSTEM (K761198) | Cambridge Instruments, Inc. | 1976-12-09 |
| ELECTROCARDIOGRAPH (MODEL VS-4B) (K760926) | Cambridge Instruments, Inc. | 1976-11-09 |
| IMPEDANCE TESTER (MODEL 4370) (K760773) | Cambridge Instruments, Inc. | 1976-10-08 |
| IMPEDANCE TESTER (MODEL 4390) (K760776) | Cambridge Instruments, Inc. | 1976-10-08 |