A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Portable flexible sealing device for grated openings
A lightweight watertight cover that is easily installed and positively secured in place, which provides a reliable seal to prevent flood water from entering openings such as subway ventilation shaft gratings and other porous openings that serve as entry point for flood water.
Portable flexible sealing device for grated openings
A lightweight watertight cover that is easily installed and positively secured in place, which provides a reliable seal to prevent flood water from entering openings such as subway ventilation shaft gratings and other porous openings that serve as entry point for flood water.
Portable flexible sealing device for grated openings
CADOGAN DAVID PHILLIP (author) / GLEESON DANIEL JAMES (author) / HINKLE JONATHAN MICHAEL (author) / ROUSHEY JEFFREY LEWIS (author)
2017-03-21
Patent
Electronic Resource
English