3 ms·

Something similar was patented in 1991: http://www.google.com/patents/about?id=ggQqAAAAEBAJ&dq=5097856 http://www.google.com/patents/about?id=ggQqAAAAEBAJ&dq=5.

by pavs 16y ago

Something similar was patented in 1991: http://www.google.com/patents/about?id=ggQqAAAAEBAJ&dq=5097856 http://www.google.com/patents/about?id=ggQqAAAAEBAJ&dq=5... Got the link from Reddit.