Among other things, an entry monitor has circuitry to detect when a person enters a monitored space and an indicator perceptible to other people in the space to indicate a cleanliness state of the hands of the person who has entered the space.

 
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< Methods and apparatus to visualize locations of radio frequency identification (RFID) tagged items

> Removable mount for mounting an electronic system component on a forklift

> Wireless position location and tracking system

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