| 摘要 |
PCT No. PCT/EP96/00714 Sec. 371 Date Jan. 30, 1998 Sec. 102(e) Date Jan. 30, 1998 PCT Filed Feb. 20, 1996 PCT Pub. No. WO96/25866 PCT Pub. Date Aug. 29, 1996A toothbrush wherein the stiffness of the bristles varies along the length or across the width of the head of the toothbrush. |
