Some of Dr Chew Heng Hai's inventions can be viewed here:-
http://www.freepatentsonline.com/WO2007133061A1.html?highlight=chew,heng,hai&stemming=on
and
http://www.freepatentsonline.com/WO2007035079A1.html?highlight=chew,heng,hai&stemming=on
with his website located at "-
http://mechamedic.com/home/products.php
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