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Publication numberUSD168528 S
Publication typeGrant
Publication dateJan 6, 1953
Filing dateMar 5, 1952
Publication numberUS D168528 S, US D168528S, US-S-D168528, USD168528 S, USD168528S
InventorsFrank G. Back
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Testing device for optical lenses and the like
US D168528 S
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

Jan. 6, 1953 F. G. BACK Des. 168,528

TESTING DEVICE FOR OPTICAL LENSES AND THE LIKE Filed March 5, 1952 IN VEN TOR.

Patented Jan. 6, 1953 UNITED STATES PATENT Des. 168,528

OFFICE TESTING DEVICE FOR OPTICAL LENSES AND THE LIKE To all whom it may concern:

Be it known that I, Frank G. Back, a citizen of the United States, residing in the city, county, and State of New York, have invented a new, original, and ornamental Design for 2. Testing Device for Optical Lenses and the like, of which the following is a specification, reference being had to the accompanying drawing, forming part thereof.

Fig. 1 is a top plan view of a testing device for optical lenses and the like, embodying my new design;

Fig. 2 is a side elevational view of the testing device for optical lenses and the like; and

Fig. 3 is an end view thereof.

I claim: The ornamental design for a testing device for optical lenses and the like, as shown.

FRANK G. BACK.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 465,409 Knipe Dec. 15, 1891 1,227,507 Victor May 22, 1917 2,147,260 Lewis Feb. 14, 1939 2,496,724 Host Feb. 7, 1950