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90° Door Indicator / Sign lock

90° Door Indicator

In public toilet, we always need to check the room one by one to know whether the toilet room is occupies or not , because the toilet door tips are not directly enough , it is really troublesome.90° Door Indicator can solve this problem ,It is combined with the lock,when there is nobody inside the toilet , It has a Prompt card that is standing with the toilet door showed signs of 90 DEG  to tips people.When the toilet is occupies , people can turn the prompt card to tips people that is occupied by the move of locking the door.

University

Guagndong UniversityOf Technology

Guagndong UniversityOf Technology
Guangzhou, China

Xiaoqi Zheng ,
Guagndong UniversityOf Technology

Jianming Guan,
Guagndong UniversityOf Technology

Huiming Zhong,
Guagndong UniversityOf Technology

Xusheng Chen,
Guagndong UniversityOf Technology