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Three-action coupled painless local anesthesia boosting system
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Novel special thyroid protection plumbous muffler suit in oral cavity
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A kind of dedicated thyroid gland protective lead muffler of novel mouth
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A kind of novel mouth band special side aperture ptysma-absorbing tube
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Auxiliary boost device for local anesthesia in bone
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Local anaesthesia injection instrument in painless bone
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A kind of synchronous laughing gas oxygen flow adjusts and exhaust gas negative pressure removal system
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A kind of oral cavity special-shaped strip retention pin and dental pump drag hook
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A kind of special painless gingival sulcus drug delivery head
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A kind of intraosseous injection system
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Aspirator outside a kind of band optical fiber bell mouth shape oral cavity
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