Contact : Dr. David J. Martin
Email:
Snail mail:
23 Hawk Crescent, Ottawa, Ont, Canada, K1V 9G8
Mr. Bell's invention:
613.523.4115
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Email:
Snail mail:
23 Hawk Crescent, Ottawa, Ont, Canada, K1V 9G8
Mr. Bell's invention:
613.523.4115
You will need to upgrade your Flash Player.
This site uses Flash 8 or greater to display the animation.