Walls and partitions and concealed fasteners for assembly...
Walls for building and the method of forming same
Warm/cold double-circulation water filter system and...
Warped support puller
Washer for roofing insulation
Washer gain for timber structures
Washer-dispensing and fastener-driving machine and stackable...
Waste air exfiltration duct
Waste dump comprising a storage space with impermeable wall...
Waste pipe branching
Waste screen
Wasted spacer member for wall elements, especially for glass...
Water absorbent gel for fire protection
Water body (e.g., pool) water level replenishment system and...
Water collection system
Water controlling building block
Water dam flashing for roof wall
Water diverting building block
Water durable board for exterior wall assembly water...
Water filtration system for high flow rate water tub...