| 摘要 |
PCT No. PCT/BE96/00010 Sec. 371 Date Feb. 2, 1998 Sec. 102(e) Date Feb. 2, 1998 PCT Filed Feb. 8, 1996 PCT Pub. No. WO96/25685 PCT Pub. Date Aug. 22, 1996A spectacles frame optionally including lenses and comprising an artificial horizon which is held in a horizontal position at all times regardless of the movement of the frame or the wearer's head. |
