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US Patent: 703,725
Lens measuring instrument Diopter gage
Patentee: Franklin Hardinge (exact or similar names) - Chicago, IL USPTO Classifications: 33/507 Tool Categories: trade specific : optician Assignees: Geneva Optical Co. - Chicago, IL Manufacturer: Geneva Optical Co. - Chicago, IL Witnesses: Alberta Adamick Harry L. Clapp	Patent Dates: Applied: Jul. 12, 1900 Granted: Jul. 01, 1902 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Hardinge Brothers
Description: See also patent 1,151,635.

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