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27-10-2012, 02:35 PM

i want the circuit diagram multiswitch office bell so that many rooms in the office can press the switch bell and the secretary in another room knows from what room was this bell using lights that display the room number.pls help me

27-10-2012, 02:53 PM

i want the circuit diagram multiswitch office bell so that many rooms in the office can press the switch bell and the secretary in another room knows from what room was this bell using lights that display the room number.pls help me

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