Anti scale device, a security device, and an intruder barrier

Anti-earthquake structure insulating the kinetic energy of...

Anti-float system for operable partitions

Anti-fog refrigeration door and method of making the same

Anti-racking device for wood framed and other buildings

Anti-seismic structure, especially structures with...

Anti-slip stair tread

Anti-stacking system for operable walls

Anti-streak cover for eavestrough

Anti-vibration sound isolator for suspended ceiling

Antifouling wall structure, method of constructing...

Antimicrobial wallboard

Antiseismic spiral stirrups for reinforcement of load...

Antiseismic, flood resisting, fire stop, house raft

Anvick aperture device and method of forming and using same

Apertured channel veneer anchor

Apertured wall element

Apparatus and a method for treating a surface, in particular...

Apparatus and method for an adjustable column

Apparatus and method for anchoring building stone