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Son Le

Independent Inventor & Patent Owner

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Patented Mechanical Rotary Toothbrush Technology with a Unique Perpendicular Gear Mechanism

I am the owner of Vietnamese Invention Patent No. 37521 covering a novel mechanical toothbrush technology. Unlike conventional manual toothbrushes, this invention utilizes a unique perpendicular gear mechanism that enabl...

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Son Le

Independent Inventor & Patent Owner

Self

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Self

Independent Inventor & Patent Owner

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Oral Biology

Last updated Jul 2026