Pharyngeal-esophaegeal segment pressure prosthesis

University of Texas System

University: University of Texas System
Assignee: Board Of Regents, University Of Texas
Inventor: Dan H. Kelly
Priority date: March 27, 1980
Filing date: March 27, 1980
Grant date: January 05, 1982
Publication date: January 05, 1982
Language: en
PDF source: https://patentimages.storage.googleapis.com/35/af/76/6b3d913b8d4bb1/US4308861.pdf
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