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Copolymeric nonlinear optical media
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Patent number 4,957,655
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Issue date Sep 18, 1990
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Hoechst Celanese Corp.
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Garo Khanarian
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Magnetostrictive acoustic transducer
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Patent number 4,716,556
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Issue date Dec 29, 1987
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Allied-Signal Inc.
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Donald Raskin
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B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
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Tuned vibration detector
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Patent number 4,479,389
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Issue date Oct 30, 1984
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Allied Corporation
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Philip M. Anderson
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Tuned vibration detector
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Patent number 4,463,610
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Issue date Aug 7, 1984
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Allied Corporation
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Philip M. Anderson
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G10 - MUSICAL INSTRUMENTS ACOUSTICS