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What's novel about Patent Application US 20120173688 ? Is there prior art?

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As explained in the FAQs, the ideal question of this sort demonstrates that the questioner has already done some homework. It might be hard to motivate people to do research on something without knowing what has already been done and what the motivation/outrage is. – George White Feb 6 '13 at 1:47
See the format discussed here for suggestions: What should an ideal prior art request look like?. – Robert Cartaino Feb 6 '13 at 16:48

A non-final office action was issued in December citing Zothner 6751657. You can look the application in question up at USPTO Public PAIR and see what else the examiner has cited and why.

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