Oblon, Spivak, McClelland, Maier & Neustadt
Door having smoke reducing apparatus associated therewith
 A door includes an apparatus for reducing smoke associated therewith. The door is particularly advantageous in reducing smoke in a fire to thereby allow a firefighter or a victim trapped in a fire to readily indentify an exit. The door includes a nozzle or plurality of nozzles mounted upon the door, with a liquid source connected to the nozzle. Preferably, the door additionally includes a supply of pressurized water therein, with a surface active agent in an amount of 0.1 to 3,000 ppm disposed in the supply of pressurized water 
Kabushiki Kaisha Nagao Kogyo
B A E B
B03C A62B E06B B01D
inventional inventional inventional inventional
Niichi Kenji Shigeo Teruo
Hayashi Okazaki Watanabe Yamada