Collapsible binocular and blank therefor

Details Collapsible binocular and blank therefor Collapsible binocular and blank therefor

1978-07-18

1980-12-16

Corbin, John K.

350140, 350 71, G02B 702

Patent

active

042393280

ABSTRACT:
A collapsible binocular and a blank for forming the same and made of semi-rigid sheet material, the binocular having front and rear lens mounting panels connected by top and bottom panels having integrally formed hinges therein, and end flaps attached to the lens mounting panels and connected at approximately the mid-point of the binocular, the top and bottom panels also including integrally formed hinges so that the binocular may be collapsed to a flat, compact package and stored within a one piece sleeve when not in use.

REFERENCES:
patent: 894665 (1908-07-01), Kissner
patent: 2789460 (1957-04-01), Kaufman
patent: 3009567 (1961-11-01), Erickson
patent: 4013341 (1977-03-01), Riley
patent: 4080043 (1978-03-01), Altenheiner et al.
patent: 4175828 (1979-11-01), Carver

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