Class 351/227 - Including trial frame

Subclass of Class 351 - Optics: eye examining, vision testing and correcting
Definition: Subject matter including frame structure for removably,
No. of patents: 44
Last issue date: 04/29/2008

Number	Title	Issue Date
4448501	Eye glasses for experimentation and testing Eye glasses for experimentation and testing comprising a frame on which adjustable lens holders can be shifted. They comprise a frontal mounting 1 which is extended downwardly in its central portion in the direction of the patient's nose by a bar 5 of short ...	05/15/1984
4381143	Ophthalmic test lens holder A lens holder having a pair of spring connected clamping members with apertures therein mountable over a lens socket of spectacle frames. The clamping members have an extent which is sufficient to completely span lens sockets and extend a distance beyond....	04/26/1983
4129361	Eye testing device for prescribing eyeglasses A device for determining a prescription lens for eyeglasses to be used by highly hyperopic patients, in which a frame mounted lens is inserted in a trial lens mounting to project on either side of the frame with one surface of the lens formed with an asph...	12/12/1978
4029402	Optical aid for use in the selection of spectacle frames An optical aid for use in the selection of spectacle frames is in the form of a trial lens mount having a lens holder with a plurality of resilient arms extending outwardly therefrom which carry at their extremities members which engage a lens-retaining g...	06/14/1977

PatentStorm