City is signal lamp for security protection

The utility model discloses a city is signal lamp for security protection, including the mobile jib, the mobile jib is hollow structure, and the opening with inside intercommunication is seted up to the upper end of mobile jib, the mobile jib internal rotation is connected with the lead screw, be eq...

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Bibliographische Detailangaben
1. Verfasser:	WANG KEKUAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTIONOF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, ORTHE LIKE CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES FIXED CONSTRUCTIONS PHYSICS SIGNALLING TRAFFIC CONTROL SYSTEMS
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