M & J

MACHINERY-NAMELY, ANNULAR VALVES, BY-PASS VALVES, AND PRESSURE VALVES

ELECTRICAL AND SCIENTIFIC APPARATUS-NAMELY, PETROL METERS, NET VOLUME TEMPERATURE COMPENSATING COMPUTERS, WATER METERS, VALVES OPERATED AUTOMATICALLY BY ELECTRICAL CIRCUIT CONTROL, BY SOLENOID OR BY TEMPERATURE OR OTHER CHANGES IN PHYSICAL CONDITIONS, INSTRUMENTS FOR TESTING, CHECKING AND VARIFICATION OF INSTRUMENTS, LEAKAGE INDICATORS, ELECTRICAL CONTROL APPARATUS, AND ELECTRONIC INSTALLATIONS FOR USE IN THE SUPERVISION, CHECKING AND REMOTE CONTROL OF INDUSTRIAL OPERATIONS