Railroad signal foundation and method of producing,...

Rain protection device including umbrella, curtain, stand,...

Raisable cover

Raising and lowering columns

Rapid assemble secure prefabricated building

Rapid deployment barrier and method of using the same

Re-configurable armored tactical personnel and collective...

Reciprocating gutter hoe conveyer

Reconfigurable blast resistant building

Recreational pool

Recreational vehicle awning support

Reducing hoop stress in silos

Reflecteur de chaleur rayonnante pliant

Refuge chamber and method

Reinforced colapsible pillar

Reinforced composite material explosion vent

Reinforced panel arch for soft-covered buildings and the like

Reinforced pole structure

Reinforced support member and method

Reinforced wire mesh wall for a modular security partition...