Evacuation indicating device for high-altitude highway tunnel

The utility model belongs to the technical field of road rescue, and particularly relates to a high-altitude road tunnel evacuation indicating device, which comprises an outer shell and a laser controller, and is characterized in that the laser controller is rotatably connected to the inner side of...

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Bibliographische Detailangaben
Hauptverfasser:	ZHENG CHANGWEI, GU XINHE, GUO QIANG, GAO LIAN, LI NING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACCESSORIES THEREFOR ADVERTISING ALARM SYSTEMS APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY CRYPTOGRAPHY DISPLAY DISPLAYING EDUCATION ELECTROGRAPHY HOLOGRAPHY LABELS OR NAME-PLATES ORDER TELEGRAPHS PHOTOGRAPHY PHYSICS SEALS SIGNALLING SIGNALLING OR CALLING SYSTEMS SIGNS
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