发明名称 Attachment for spectacles
摘要 An attachment to assist in holding spectacles on the head of a wearer. The attachment has at least one anchor member to grip the ear pieces of the spectacles and a retaining member, usually a cord, extends from the anchor member or members. A neck band is received around the neck of the wearer and the retaining member is attached to the neck band. One embodiment includes a head strap that extends secure behind the head of a wearer. A further embodiment has a single anchor member to grip both ear pieces and also to act as a head strap.
申请公布号 US4998816(A) 申请公布日期 1991.03.12
申请号 US19890446481 申请日期 1989.12.05
申请人 EGGENBERGER, JEAN-ALBERT;EGGENBERGER, EDITH 发明人 EGGENBERGER, JEAN-ALBERT;EGGENBERGER, EDITH
分类号 G02C3/00 主分类号 G02C3/00
代理机构 代理人
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