USRE37298EExpiredUtility
Indirect ophthalmoscopy lens retaining ring
Est. expiryOct 1, 2013(expired)· nominal 20-yr term from priority
Inventors:Donald A. Volk
A61B 3/125A61B 3/135G02B 13/18
32
PatentIndex Score
8
Cited by
5
References
0
Claims
Abstract
CLAIM The ornamental design for an indirect ophthalmoscopy lens retaining ring, as shown and described. DESCRIPTION FIG. 1 is a side elevational view of an indirect opthalmoscopy lens retaining ring, showing my new design; FIG. 2 is a cross-sectional view taken along lines 2—2 of FIG. 1; FIG. 3 2 is an end elevational view taken from the left of FIG. 1 and; FIG. 4 3 is an end elevational view taken from the right of FIG. 1.
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