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Gas: heating and illuminating

Subclass of: 048 - Gas: heating and illuminating

Deeper subclasses:

048061000 - GENERATORS (107)
048127100 - CONVERSION OF HYDROCARBON GAS AND BLENDING OF PRODUCT WITH FURTHER HYDROCARBON GAS, PROCESS (1)
048127300 - METHANE (NATURAL GAS) -CONTAINING PRODUCT, OR TREATMENT OR RECOVERY PROCESS (30)
048127900 - APPARATUS FOR CONVERTING OR TREATING HYDROCARBON GAS (13)
048174000 - HOLDERS (3)
048180100 - MIXERS (2)
048190000 - DISTRIBUTION (1)
048197000 - PROCESSES (48)