| 摘要 |
<p>438,709. Dental absorbent rolls. HALLER, L., 10, Gerokstrasse, Stuttgart, Germany. July 1, 1935, No. 18820. Convention date, July 2, 1934. [Class 81 (ii)] Wadding or cellulose absorbent rolls employed in the mouth in dentistry are formed with a blunt or sharp point at one or both of their ends by cutting obliquely as shown, or by tapering or bevelling on both sides. When cut obliquely, the ends may be parallel as shown or cut in opposite directions.</p> |
