Digital Data Entry Glove, by Gary Grimes 1983
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The first widely recognized device for measuring hand positions was developed by Dr. Gary Grimes at Bell Labs. Patented in 1983, Grimes' Digital Data Entry Glove had finger flex sensors, tactile sensors at the fingertips, orientation sensing and wrist-positioning sensors. The positions of the sensors themselves were changeable. It was intended for creating "alpha-numeric'' characters by examining hand positions. It was primarily designed as an alternative to keyboards, but it also proved to be effective as a tool for allowing non-vocal users to "finger-spell'' words using such a system.