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Even though the electronic security system was be invented in the world. But traditional key not only used frequently but also most universal.This innovative key design was developed to replace conventional key. Multiple keys were placed systematically on a piece of card with required thickness. Add to icons and Braille to recognize. The design is neat and the key can be identified at unique and forage easily. Special feature was introduced to allow the key to push out with minimum force applied. Light source was incorporated on the edge to provide easy of use especially at night. The universal design concept satisfied demands from user.
Chih-Chiang Weng Yu-Ju Hsiao Po-Wen Chen Chin-Ta Chuang