| http://www.w3.org/ns/prov#value | - and frame, such as a guard ring, provided on the inner...http://www.google.com/patents/US5191289?utm_source=gb-gplus-sharePatent US5191289 - Rf-coil for mri apparatusAdvanced Patent SearchPublication numberUS5191289 APublication typeGrantApplication numberUS 07/638,162Publication dateMar 2, 1993Filing dateJan 4, 1991Priority dateJan 10, 1990Fee statusLapsedAlso published asDE69013319D1, DE69013319
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