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Note 5 - Patents and Trademarks, Net (Detail) - Patents and Trademarks, Net: (USD $) | Nov. 30, 2012 | Aug. 31, 2012
--- | --- | ---
Patents and trademarks | $ 2,012,729 | $ 1,945,785
Less accumulated amortization | (1,000,328) | (984,604)
| $ 1,012,401 | $ 961,181

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