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Potential prior art here in a patent from the early 1990s: http://www.google.com/patents/US5337652 http://www.google.com/patents/US5337652
by pents90 14y ago
Potential prior art here in a patent from the early 1990s: http://www.google.com/patents/US5337652 http://www.google.com/patents/US5337652