发明授权
US5239320A Venting system for eyeglasses 失效
眼镜通风系统

Venting system for eyeglasses
摘要:
There is disclosed a venting system adapted to direct air flow over the inside of an eyeglass lens to minimize a tendency to fog. The venting system may be an integral part of a pair of eyeglasses, or may be incorporated in a separate member, in particular a shielding cassette, adapted to be used with a pair of eyeglasses.
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