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The 3-DVG invention at the Franklin Institute, 1989

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Uploaded on May 20, 2010

The 3-DVG invention at the Franklin Institute, 1989

This promotional clip was assembled from video recorded in Philadelphia at the first public disclosure of the Three-Dimensional Viewing Glasses (3-DVG) invention (U S. Patent 4,810,057). The occasion was the Franklin Institute's Invention Convention in 1989.

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