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GB Patent: GB-181,103,428
Improvements on a micrometer
Patentee:
Thomas William Sturgeon - London, England

USPTO Classifications:

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Apr. 01, 1811

Patent Pictures:
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