Heat exchangers being parts of machines

Scientific apparatus in the nature of temperature control and monitoring devices, namely, circulators, electrical controlling devices, laboratory equipment, namely electric bath heaters, temperature controller for controlling temperature of medical instruments and containers for medical fluids, temperature controllers for warming and cooling medical and surgical liquids, equipment and instruments, temperature indicators and temperature sensors used as self-contained units; scientific apparatus in the nature of temperature control and monitoring devices, namely, electric bath heaters, temperature controller for controlling temperature of medical instruments and containers for medical fluids, temperature controllers for warming and cooling medical and surgical liquids, equipment and instruments, temperature indicators and temperature sensors used in combination with computer software controlled analog, digital, and microprocessor-based temperature control devices, scientific apparatus in the nature of temperature control and monitoring devices, namely, electric bath heaters, temperature controller for controlling temperature of medical instruments and containers for medical fluids, temperature controllers for warming and cooling medical and surgical liquids, equipment and instruments, temperature indicators and temperature sensors used in combination with external circulators for such physical and chemical procedures as temperature calibration and reaction rate studies and for providing a constant temperature source to maintain stability in others' instruments and apparatus; Scientific apparatus in the nature of temperature control devices, namely, heating systems composed primarily of tubes, pipes and preassembled manifolds through which cold or low temperature water circulates, refrigeration equipment, namely, food and beverage chilling units, refrigeration equipment, food and beverage chilling units, used as self-contained units; scientific apparatus in the nature of temperature control devices, namely, heat exchangers, heating systems composed primarily of tubes, pipes and preassembled manifolds through which cold or low temperature water circulates, refrigeration equipment, namely, food and beverage chilling units, refrigeration equipment, food and beverage chilling units used in combination with computer software controlled analog, digital, and microprocessor-based temperature control devices, scientific apparatus in the nature of temperature control devices, namely, heat exchangers, heating systems composed primarily of tubes, pipes and preassembled manifolds through which cold or low temperature water circulates, refrigeration equipment, namely, food and beverage chilling units, refrigeration equipment, food and beverage chilling units used in combination with external circulators for such physical and chemical procedures as temperature calibration and reaction rate studies and for providing a constant temperature source to maintain stability in others' instruments and apparatus