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AERONAUTICS - NAVALS-RAILROAD
CHEMICAL ANALYSIS
PHYSICAL ANALYSIS
ARCHITECTURE-DECORATION
SILVERING
TABLE GLASSWARE
FANCY GOODS
AUDIT
BUILDING
JEWELLERY
BENDING
SANDCASTING
JOINING
STAINED GLASS PRESERVATION/RESTORA
MEASUREMENT - CONTROL
PROTOTYPE / TROPHY CREATION
CRYSTAL GLASSWORK
STAINED GLASS - GLASS SLAB
DECALS
BOTTLE DECORATION
CUTTING
WATERJET CUTTING
ACID FROSTING
ELECTRIC HOUSEHOLD APPLIANCES
ENAMELLING
NEON SIGN
EXPERT EVALUATION
FLAT GLASS/ MIRROR WORKING
GLASS FIBRE
SPINNING WITH A BLOWPIPE
FILIGRANA, MURRINE,MILLEFIORI
MANUFACTURE OF SMALL BOTTLES
FUSING
ACID ENFRAVING
DIAMOND WHEEL ENGRAVING
CLOCK AND WATCH GLASS
PRINTING / DECORATION
AUTOMOBILE INDUSTRY
INSULATION
LUMINAIRE
METALLISING
MINIATURE BOTTLE
CASTING
STANDARDIZATION
OPTICS

PATE DE VERRE
PAINTING ON GLASS

SPRAY COATING
POLISHING
ACID POLISHING
RECYCLING PROMOTION
SCIENTIFIC RESEARCH
HOUSEHOLD GLASSWARE RECYCLING
FLAT GLASS RECYCLING
TECHNICAL GLASSWARE RECYCLING
REPAIR
RESTORATION
SANDBLASTING
NO SPECIALITY
SATIN ETCHING
SCULPTURE
SCREEN PRINTING
SIGNAL GLASS
SILICONING
GLASS-METAL SEALING
GLASS BLOWING : INCALMO
GLASSBLOWING
LAMPWORKING
UNDERLAY,OVERLAY,GRAAL
SURFACE WORKING
DECORATIVE CUTTING
TAMPOGRAPHY
LASER TECHNICS
KILNFORMING
TIFFANY
SURFACE TREATMENT
CHEMICAL TEMPERING
THERMAL TEMPERING
MACHINING
AUTOMOBILE GLASS
HOLLOW WARE

FLAT GLASS
PRESSED GLASS
TECHNICAL GLASS
GLASSWARE
LABORATORY GLASSWARE
MEDICAL GLASSWARE
STAINED GLASS
GLASS CERAMICS