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US Patent: 1,526,418
Attachment for Depth Gauges
Patentee:
George Gronner (exact or similar names) - Davenport, Scott County, IA

USPTO Classifications:
33/836

Tool Categories:
metalworking tools : machinist tools : measuring tools : depth micrometers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Mar. 22, 1922
Granted: Feb. 17, 1925

Patent Pictures:
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