US Patent 7410252 Spectacle frames

There is provided a spectacle frame comprising: a front for holding therein two lenses; the front having front end pieces extending rearward at each end thereof, each front end piece having an upper portion and a lower portion; and one of the upper portion and the lower portion having a geometric projection for engagement in and disengagement from a corresponding sized and shaped geometric opening in the other of the upper portion and the lower portion, the engagement and disengagement being by lateral movement only. A clip for engagement with front end pieces of a spectacle frame is also disclosed.