1977 Cases AU-MORE THAN TWO UTILITIES (2 cases) BS-BUS (36 cases) EL-ELECTRIC (97 cases) GA-GAS (502 cases) GE-GAS & ELECTRIC (10 cases) HT-HEATING (5 cases) PL-PIPE LINE (7 cases) RC-RADIO COMMON CARRIERS (17 cases) RR-RAILROAD (39 cases) ST-SEWAGE TREATMENT (14 cases) TP-TELEPHONE (216 cases) TR-TRANSPORTATION (544 cases) WS-WATER & SEWER (8 cases) WW-WATER WORKS (35 cases)