Brake shoe for sash window or door assembly
Brake shoe with spring brake member
Braking system for a vehicle manual window-lifting mechanism
Break away wall structure
Break-in resistant wood panel door
Break-resistant railroad crossing gate
Breakaway assembly for vehicle barrier device
Breakaway for revolving doors
Breakout capable sliding door assembly with pivot connection...
Buck frame and window frame removably fitted therein
Bucket and closure member apparatus
Building entrance
Building structure
Building structure
Building wall panel and door unit
Bulkhead door assembly
Bullet-impeding or burglary-inhibiting security window or door
Bump gate
Bumper actuated gate
Bunker closure door operating mechanism