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1969-06-18 |
1971-10-05 |
Polaroid Corp |
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1984-05-01 |
Polaroid Corporation |
Optical device including birefringent polymer
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1983-10-14 |
1985-09-10 |
The Dow Chemical Company |
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1992-06-16 |
The Dow Chemical Company |
Relective polymeric body
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1990-07-24 |
1992-04-07 |
The Dow Chemical Company |
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1992-06-30 |
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1999-11-04 |
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1993-05-24 |
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2002-12-24 |
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Multilayer optical bodies
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1993-12-21 |
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2007-04-26 |
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2000-12-05 |
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2004-10-26 |
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1998-01-28 |
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