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US5269251A Traffic safety control system and method 失效
交通安全控制系统及方法

Traffic safety control system and method
摘要:
A traffic safety control system is described in which connection of standard information signs, standard flags and staffs, standard barricade rope and standard barricade tape, and standard chemical light sticks to standard traffic cones is facilitated by the use of special adapters. Battery operated warning lamps connected directly to standard traffic cones provide an additional safety factor when the system is utilized to perimeterize a traffic control area.
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