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US Patent: 1,551,154
Micrometer Extension Post
Patentee:
Boledslaw A. Janik (exact or similar names) - Milwaukee, Milwaukee County, WI

USPTO Classifications:
33/826

Tool Categories:
metalworking tools : machinist tools : measuring tools : micrometer attachments
metalworking tools : machinist tools : measuring tools : inside micrometers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Mar. 01, 1924
Granted: Aug. 25, 1925

Patent Pictures:
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