| 摘要 |
individual hygienic articles. SUBSTANCE: toothbrush has electric drive, rotary shaft with remote end inserted into slot in bristle holder mounted for rotation on pin secured on head. During rotation of shaft, remote end describes circle and comes into pulling engagement with slot for causing bristle holder to vibrate. Bristle holder has row of receptacles for inserting and securing of bristles distributed over holder upper surface. Bristles are movable relative to toothbrush handle. EFFECT: increased efficiency by simplified displacement of bristles and convenient usage. 3 cl, 7 dwg
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