B
PERFORMING OPERATIONS; TRANSPORTING
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B60
VEHICLES IN GENERAL
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B60H
ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
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1/00
Heating, cooling or ventilating; [HVAC]; devices
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B60H1/3228
characterised by refrigerant circuit configurations
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B60H1/32284
comprising two or more secondary circuits, e.g. at evaporator and condenser side
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