DESIGN AND CONSTRUCTION OF HOUSE BELL WITH INDICATING LIGHT
CHAPTER ONE INTRODUCTION BACKGROUND OF THE STUDY To cleanly understand the wood information technology and communication which is the life blood of all human activities the assimilation of communication technology is of great important. The development of communication technology in any nation makers communication technology easy and pleasant. And one of basic building block of a communication system is the house bell indicating which serves as inter-call light to ensure ...
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