Optical element

Details Optical element Optical element

2011-06-07

2011-06-07

Eland, Bridget (Department: 2916)

Medical and laboratory equipment

Equipment for diagnosis, analysis, or treatment

Hand manipulated tool or instrument

Design Patent

active

D0639429

CLAIM:
The ornamental design for an optical element, as shown and described.

REFERENCES:
patent: D286566 (1986-11-01), Vukovic
patent: 4951977 (1990-08-01), Shutt
patent: D611600 (2010-03-01), Stammberger et al.
patent: D630322 (2011-01-01), Speiser
patent: D630734 (2011-01-01), Speiser
patent: 2007/0088200 (2007-04-01), Dahmen et al.
patent: 2008/0195128 (2008-08-01), Orbay et al.
patent: 300891690 (2007-11-01), None

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