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FIXED CONSTRUCTIONS
Navigazione per classificazione brevettuale:
- BUILDING (layered materials, layered products in general B32B) (34)
- CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES (of tunnels E21D) (8)
- DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS (2)
- EARTH DRILLING; MINING (24)
- HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING (19)
- LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES (1)
- WATER SUPPLY; SEWERAGE (6)
