73171397
May 22, 1978
Jul 6, 1982
Regulating Valves and Apparatus for Regulating Cooling Water for Combustion Engines and Similar Regulating Purposes, and Heat Exchangers (which Are Parts of Machines)
MachineryPyrometers; Thermostats; Thermostatically Operated Regulating Valves; Electronic Temperature Regulators for Use Primarily in Temperature Control Systems in Industrial and Marine Installations; Heat Measuring Meters; Hot Water Meters; Regulating Valves for Use Primarily in Central Heating, District Heating and Oil Heating Plants; and Temperature, Pressure and Pressure Differential Regulators for Use Primarily in Central Heating, District Heating and Oil Heating Plants
Electrical and Scientific ApparatusConsultation Services Concerning Installation and Operation of Space Heating Plants, Meter Reading, and Preparation of Heating Accounts
Advertising and BusinessServices in Connection with Installation, Repair and Maintenance of Heating, Cooling, Ventilating and Hot Water Plants
Building Construction and Repair