Bricklayer's speed lead with reversible clip means
Building siding removal and reinstallation system
Building wall construction method
Building, method and apparatus for the construction thereof
Collated drywall screws
Construction and repair of refractory structures, in particular
Construction system for detention structures and multiple story
Construction system for detention structures and multiple story
Curtain wall system and method
Deck board tie connector, connection and method
Decorative column for housing requirements and similar purposes
Demountable multiple level building structure
Demountable multiple level building structures
Device and method for repairing building surfaces
Device for bridging a difference in height between two floor...
Distortion-free vinyl siding
Dome construction method
Fixture and method of laying shingles on the surface of a roof o
Floor element with guiding means
Floor Installation clamp