U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

A system of eyewear that eliminates the need for hinges on the frames of the eyewear.

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Class 114/156 - Intermediate gear

Subclass of Class 114 - Ships
Definition: Screw-shaft gearing in which other gears are placed between
No. of patents: 0