发明授权
US4457502A Simple dental service equipment 失效
简单的牙科服务设备

Simple dental service equipment
摘要:
A structurally simplified dental service equipment generally usable for collective dental examination and practical exercises in dental hygienist training schools, wherein the equipment is easily transportable to any places in a disassembled form and assembled on the scene of dental examination, being advantageously employable as advantageously just as existing dental service equipment in use at most dental clinics.
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