73686029
Sep 24, 1987
Aug 29, 1989
MAINTENANCE AND REPAIR OF ELECTRONIC AND PNEUMATIC INSTRUMENTS, NAMELY DATA CONCENTRATORS, MULTIPLEXERS, OPERATOR CONSOLES, COMMUNICATIONS TRAFFIC DIRECTORS, PRINTERS, COMPUTERS, LIQUID LEVEL CONTROLLERS, PRESSURE REGULATORS, VACUUM REGULATORS, PUMP GOVERNORS, TIME AND TEMPERATURE REGULATORS AND AUTOMATIC CONTROL VALVES USED IN INDUSTRY
Building Construction and Repair