Panels of controllable radiation transmissivity
Pivot rod connector for moveable shutters
Pivotal and adjustable closure vertical rail louver system
Plug door drive system
Plug in pull bar hinge
Power operator for sliding plug doors
Power sliding window assembly
Power sliding window for truck cab
Programmed sequential operator
Pull bar connector for shutters
Pull bar connector for shutters
Pulley for double hung windows
Reciprocating barrier assembly
Reinforced jalousie window with spaced wall side jambs for pivot
Removable louver and tilt control
Safety gate
Safety gate assembly
Screen assembly
Seal for sides of pivoted blade structures
Security window of the jalousie variety