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Wind motor using on well
Earvaipattinam Union School, Earvaipattinam, Tamil Nadu, India
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Direction identifier machine
Earvaipattinam Union School, Earvaipattinam, Tamil Nadu, India
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TV WITH HANDS AND VOICE SENSOR
Earvaipattinam Union School, Earvaipattinam, Tamil Nadu, India
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ATM WITH THIEF DETECTOR
Earvaipattinam Union School, Earvaipattinam, Tamil Nadu, India
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