9 LABORATORY APPARATUSES, NAMELY, GLASS BEAKERS, FLASKS, BOTTLES, TEST TUBES, CRUCIBLES AND DISHES; APPARATUSES FOR SCIENTIFIC PURPOSES, NAMELY, DISTILLATORY APPARATUSES, COMBUSTION UNITS, COMBUSTION APPARATUSES, COMBUSTION TUBES, COILS, REACTORS, CONDENSERS; LABORATORY APPARATUSES, NAMELY, SILICA-GLASS SMELTERS AND SILICA-GLASS TRAYS AND BEAKERS; LABORATORY APPARATUSES AND INSTRUMENTS FOR LOW-VOLTAGE APPLICATIONS, NAMELY, FUSED QUARTZ BELL JARS, FUSED QUARTZ CRUCIBLES, INSULATORS; COMPONENTS FOR LABORATORY APPARATUS AND APPARATUS FOR SCIENTIFIC PURPOSES MADE OF SILICA-GLASS AND QUARTZ WARE, NAMELY, TUBES, CAPILLARY TUBES, STREAMLINED-SECTION TUBES, BEAKERS, FLASKS, BOTTLES, TEST TUBES, CRUCIBLES, DISHES, DISTILLATORY APPARATUSES, COMBUSTION UNITS, COMBUSTION APPARATUSES, COMBUSTION TUBES, COILS, REACTORS, FUSED QUARTZ BELL JARS, FUSED QUARTZ CRUCIBLES, CONNECTORS WITH STANDARD GROUND JOINTS, ADAPTERS, STOPPERS, SOCKETS, STOPCOCKS - COMPONENTS FOR LABORATORY APPARATUS AND LABORATORY INSTRUMENTS MADE OF SILICA-GLASS AND QUARTZ WARE, NAMELY, TUBES, CAPILLARY TUBES, STREAMLINED-SECTION TUBES, FUSED QUARTZ BELL JARS, FUSED QUARTZ CRUCIBLES, INSULATORS