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US Patent: 1,305,872
Micrometer Drilling Gage
Patentee:
Bert Bollie (exact or similar names) - Aurora, IL

USPTO Classifications:
33/813, 408/116, 408/234, 408/241R, 409/218

Tool Categories:
layout tools : special purpose gauges
metalworking tools : machinist tools : measuring tools : micrometers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
H. Woodard
Patent Dates:
Applied: Jun. 17, 1918
Granted: Jun. 03, 1919

Patent Pictures:
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Description:
H. B. Willson & Co. - patent attorneys

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