| http://www.w3.org/ns/prov#value | - g, electrically communicating with the electronic circuit of said upper unit housing, movable relative to said upper unit housing, and engageable with said lower connector of said lower electronic unit; and latching means for fixedly securing said upper unit housing to said lower unit housing, said latching means including an actuator which is operated to secure the two unit housings together; whe
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