Releasable arm for dental patient chair
作者： Barry S. Young , John W. Lewis
DOI:
关键词: Physical medicine and rehabilitation 、 Engineering 、 Movement (music) 、 Position (obstetrics) 、 Engineering drawing
摘要: A dental patient chair having support arms extending from a back above and alongside seat latch means operable by user to release the arm locked first use position or second out-of-the-way for movement between said positions.
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