USD229716S - Rear projection viewer - Google Patents
Rear projection viewer Download PDFInfo
- Publication number
- USD229716S USD229716S US D229716 S USD229716 S US D229716S
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- US
- United States
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- rear projection
- viewer
- projection viewer
- alexandria
- united states
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United States Patent 0 Se 229,116
Patented Dec. 25, 1973 REAR PROJECTION VIEWER Carl S. Shirley, Alexandria, Va., assignor to General Educational Technology Corporation, Alexandria, Va.
Filed Nov. 6, 1972, Ser. No. 303,763
Term of patent 14 years Int. Cl. D1603 US. Cl. D61-1 N FIG. 1 is a top, front and left side perspective view of References Cited a rear projection viewer showing my new design; UNITED STATES PATENTS FIG. 2 is a bottom, front and right slde perspectlve 7, 45 2/1964 Bravo D61-1 N vieIw lthereof, the rear belng plaln and unornamented. 3 5/1972 wens 6 I C 1 3,561,860 2/1971 Rudolph D 1-1 The ornamental deslgn for a rear PI'OJBCHOH viewer, as 3,352,203 11/1967 Barke n 352 104 Shown and descnbed' 2,405,168 8/1946 Schuler D611 N x JOEL STEARMAN, Primary Examiner N. C. HOLTJE, Assistant Examiner
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