Binocular interpupillary distance lock apparatus

Photography and optical equipment – Optical article not elsewhere specified – Telescope

Design Patent

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Details

CD16S130000

Design Patent

active

D0593587

CLAIM:
The ornamental design for a binocular interpupillary distance lock apparatus, as shown and described.

REFERENCES:
patent: 2032866 (1936-03-01), Black
patent: 2136149 (1938-11-01), Nuchterlein
patent: 2287468 (1942-06-01), Cisski
patent: 3431043 (1969-03-01), Cassidy et al.
patent: D231858 (1974-06-01), Huckenbeck
patent: D240458 (1976-07-01), Takah et al.
patent: D241165 (1976-08-01), Huckenbeck
patent: D241680 (1976-09-01), Huckenbeck
patent: D241978 (1976-10-01), Huckenbeck
patent: D245081 (1977-07-01), Gerdom
patent: 4909617 (1990-03-01), Boyd
patent: D387787 (1997-12-01), Palmer

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