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Christopher R. Whitfield
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Richmond, VA, US
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last 30 patents
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Patent Grant
Quenching and coagulation of filaments in an ultrasonic field
Patent number
5,244,607
Issue date
Sep 14, 1993
E. I. Du Pont de Nemours and Company
Richard D. Rheutan
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING