USD210417S - Visual acuity slide projector - Google Patents
Visual acuity slide projector Download PDFInfo
- Publication number
- USD210417S USD210417S US D210417 S USD210417 S US D210417S
- Authority
- US
- United States
- Prior art keywords
- visual acuity
- slide projector
- projector
- slide
- united states
- Prior art date
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- 230000004304 visual acuity Effects 0.000 title description 8
- 230000003287 optical Effects 0.000 description 4
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Description
- United States Patent Ofifice Des. 210,417 Patented Mar. 5, 1968 VISUAL ACUITY SLIDE PROJECTOR Paul A. Hoogesteger, Brighton, N.Y., assignor to Bausch & Lomb Incorporated, Rochester, N.Y., a corporation of New York Filed Aug. 18, 1966, Ser. No. 3,525
Term of patent 14 years FIG, 1 is a front and side perspective view of a visual acuity slide projector, showing my new design; and
FIG. 2 is a rear and opposite side perspective view thereof, to an enlarged scale.
I claim:
The ornamental design for a visual acuity slide projector, substantially as shown.
References Cited UNITED STATES PATENTS 7/1934 Tensen D57-1 8/1947 Teague et a1. D61-1 OTHER REFERENCES Optical Journal and Review of Optometry, Dec. 15, 1962, page 21, American Optical Company Project-ochart, QC 350.058 Scientific Library.
EDWIN H. HUNTER, Primary Examiner.
WILLIAM M. HENRY, Assistant Examiner.
Family
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