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Tooth-brush with optimum brushing capacity - has handle and brush support joining at angle, with recess at back of bend
Tooth-brush with optimum brushing capacity - has handle and brush support joining at angle, with recess at back of bend
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机译:具有最佳刷牙能力的牙刷-手柄和刷具支撑以一定角度连接,弯曲后部有凹槽
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摘要
The tooth-brush has a handle (1) and front part joined to the handle, constituting the support (2) for the brush (6). The handle is conical and backward tilting. Its cross-section is round. The support of the brush part is rounded on the back surface, and forms an angle of between twenty-five and thirty-five degrees with the lengthwise axis of the handle. In the part where the toothbrush folds, the handle tapers down towards the support for the brush part, and has a slight recess (4) on the back. The brush part is positioned in the front part of the support on the lengthwise axis of the handle, and over an area which is shorter than half the length of the brush part.
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