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Blind cane for deaf and blind person
http://worldwide.espacenet.com/publicationDetails/biblio?CC=CN&NR=204016782U&KC=U&FT=D&ND=3&date=20141217&DB=EPODOC&locale=en_EP
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Tags
- 2014
- angle
- assistive
- battery
- cane
- controller
- deaf
- foundation
- impaired
- patent
- sensor
- stick
- technology
- ultrasonic
- ultrasound
- vibration
- visually
