Video magnifier for assisting persons with vision impairment

Photography and optical equipment – Projector or viewer – Integrated unit

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Details

D16135, 1602

Patent

active

D04305884

REFERENCES:
patent: D127030 (1941-05-01), Bettcher
patent: D134484 (1942-12-01), Gradisar et al.
patent: D245934 (1977-09-01), Donaldson
patent: D359059 (1995-06-01), Omi
patent: 4928170 (1990-05-01), Soloveychik et al.
patent: 5125046 (1992-06-01), Siwoff
patent: 5267331 (1993-11-01), Siwoff
patent: 5633674 (1997-05-01), Trulaske et al.
patent: 5831667 (1998-11-01), Siminou

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