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blasting (8) 8
heating (8) 8
lighting (8) 8
mechanical engineering (8) 8
pipe-line systems (8) 8
pipe-lines (8) 8
storing of distributing gases or liquids (8) 8
weapons (8) 8
acyclic or carbocyclic compounds (6) 6
adding materials to fuels or fires to reduce smoke orundesirable deposits or to facilitate soot removal (6) 6
chemistry (6) 6
cracking hydrocarbon oils (6) 6
firelighters (6) 6
fuels (6) 6
fuels not otherwise provided for (6) 6
liquefied petroleum gas (6) 6
lubricants (6) 6
metallurgy (6) 6
mineral waxes (6) 6
natural gas (6) 6
organic chemistry (6) 6
peat (6) 6
performing operations (6) 6
petroleum, gas or coke industries (6) 6
physical or chemical processes or apparatus in general (6) 6
production of liquid hydrocarbon mixtures, e.g. by destructivehydrogenation, oligomerisation, polymerisation (6) 6
recovery of hydrocarbon oils from oil-shale, oil-sand, orgases (6) 6
refining mixtures mainly consisting of hydrocarbons (6) 6
reforming of naphtha (6) 6
separation (6) 6
synthetic natural gas obtained by processes not covered bysubclasses c10g, c10k (6) 6
technical gases containing carbon monoxide (6) 6
transporting (6) 6
earth drilling (2) 2
earth drilling, e.g. deep drilling (2) 2
fixed constructions (2) 2
mining (2) 2
obtaining oil, gas, water, soluble or meltable materials or aslurry of minerals from wells (2) 2
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