Collapsible spectacles

Details Collapsible spectacles Collapsible spectacles

1985-02-28

1989-04-11

Bovernick, Rodney B.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Connectors

351113, 351128, G02C 522

Patent

active

048200352

ABSTRACT:
The invention provides spectacles in which the distance between two lens frames (1)(2) is variable and which has holders (7)(7a) on the lens frame, a bridge (8) slidably fitted in the holder for connecting the lens frames together and holding means (9) for determining the effective length of the bridge.

REFERENCES:
patent: 2389428 (1945-11-01), Glasser
patent: 3586425 (1971-06-01), Gilman
patent: 3880503 (1975-04-01), Uribe

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