EU Trademark Classification EU42 Scientific and technological services 燃油燃烧器检查（71609） Class 42 Oil burner inspection 71609 燃油燃烧器检查 Chinese 燃油燃烧器检查 English Oil burner inspection Site ref. 71609 Class 42 Included in Harmonised Database (HDB), WIPO Madrid Goods and Services (MGS)