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US Patent: 1,188,978
Micrometer Calipers
Patentee:
Joseph H. Müller (exact or similar names) - Oakland, Alameda County, CA

USPTO Classifications:
33/821

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Jul. 21, 1915
Granted: Jun. 27, 1916

Patent Pictures:
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