| http://www.w3.org/ns/prov#value | - Contact circuit board 68 preferably includes a circuit which provides voltage to illuminate the LED 66, a contact switch means 72 which illuminates the LED 66 when the contact switch means 72 is actuated, and a sound maker 70 which is turned on for a short duration, such as ten seconds or less to indicate an audible sound whenever the LED 62 is turned on.
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