USD176300S - Projection magnifier - Google Patents
Projection magnifier Download PDFInfo
- Publication number
- USD176300S USD176300S US D176300 S USD176300 S US D176300S
- Authority
- US
- United States
- Prior art keywords
- magnifier
- projection
- view
- perspective
- new
- Prior art date
Links
- 230000003287 optical Effects 0.000 description 2
- 230000002747 voluntary Effects 0.000 description 2
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Description
Des. 176,300 Patented Dec. 13, 1955 nited States Patent 0 PROJECTION MAGNIFIER John T. Armbruster, Niagara Falls, N. Y., assignor to American Optical Company, Southbridge, Mass., a voluntary association of Massachusetts Application June 27, 1955, Serial No. 36,687
Term of patent 14 years Fig. 1 is a perspective view of a projection magnifier in a raised position, showing my new design;
References Cited in the file of this patent UNITED STATES PATENTS Fig. 2 is a similar perspective view in a lowered posi tion but from the opposite corner of the instrument.
D. 108,554 Simmon Feb. 22, 1938 1950 The characteristic features of the new des1gn reside 1n 161220 Van Dyck the portions shown in full lines in the drawing. D 167363 Peters July 1952 I claim: The ornamental design for a projection magnifier, substantially as shown and described.
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