US Patent: 1,151,635 - Diopter gage


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US Patent: 1,151,635

Lens-measure
Diopter gage

Patentee:

Austin T. Webb - Chicago, IL

USPTO Classifications:

33/507

Tool Categories:

trade specific : optician

Assignees:

Geneva Optical Co. - Chicago, IL

Manufacturer:

Geneva Optical Co. - Chicago, IL

Witnesses:

Charles W. Peterson

L. M. Hopkins

Patent Dates:
Applied:	Jan. 25, 1913
Granted:	Aug. 31, 1915

Patent Pictures:

USPTO pdf tiff
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Description:

The patent dates for this patent and the earlier patent 703,725 were seen on a "Geneva Lens Measure"; it also said, "Pat'd Great Britain, Germany & France."