| 摘要 |
PCT No. PCT/SE89/00545 Sec. 371 Date Mar. 18, 1991 Sec. 102(e) Date Mar. 18, 1991 PCT Filed Oct. 5, 1989 PCT Pub. No. WO90/03741 PCT Pub. Date Apr. 19, 1990.Lightweight foldable headgear with sun visor and detachable collapsible binoculars for shielding light and improving the wearer's ability to view events or other sights.
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