1973 Cases BS-BUS (1 cases) EL-ELECTRIC (13 cases) GA-GAS (21 cases) GE-GAS & ELECTRIC (2 cases) RC-RADIO COMMON CARRIERS (6 cases) RR-RAILROAD (14 cases) ST-SEWAGE TREATMENT (3 cases) TP-TELEPHONE (13 cases) TR-TRANSPORTATION (27 cases) WS-WATER & SEWER (5 cases) WW-WATER WORKS (11 cases)