USD170296S - Armbruster vision testing device - Google Patents

Description

Sept. 1, 1953 J. T. ARMBRUSTER 170,296

VISION TESTING DEVICE Filed April 25, 1952 2 sheets-sheet 1 INVENTOR JOHN T. ARMBRU sTER ATTORNEYS P 1, 1953 J. T. ARMBRUSTER Des. 170,296

VISION TESTING DEVICE Filed April 23, 1952 2 Sheets-Sheet 2 INVENTOR JOHN T. ARMBRUSTER Patented Sept. 1, 1953 Des. 170,296

UNITED STATES PATENT OFFICE VISION TESTING DEVICE John T. Armbruster, Niagara Falls, N. Y., assignor to American Optical Company, Southbridge, Mass., a. voluntary association of Massachusetts To all whom it may concern:

Be it known that I, John T. Armbruster, citizen of the United States of America, residing at Niagara Falls, in the county of Niagara and State of New York, have invented a new, original, and ornamental Design for a Vision Testing Device, of which the following is a sepcification, reference being made to the accompanying drawings, forming a part thereof.

In the drawings:

Fig. 1 is a front perspective view of a vision testing device, showing my new design; and

Fig. 2 is a rear perspective view thereof.

The characteristic features of the new design reside in the portions shown in full lines in the drawings.

I claim: The ornamental design for a vision testing device, substantially as shown and described.

JOHN T. ARMB-RUSTER.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 777,867 Thomson Dec. 20, 1904 1,850,168 Covelle Mar. 22, 1932 1,874,986 Harker Aug. 30, 1932 2,406,596 Ellis Aug. 27, 1946' 2,466,958 Long Apr. 12, 1949 2,478,662 Long Aug. 9, 1949

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