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US Patent: 1,540,473
Measuring Instrument Attachment
Patentee:
Alfred H. Hitchcock (exact or similar names) - Mittineague, Hampden County, MA

USPTO Classifications:
33/828, D10/73

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Mar. 09, 1923
Granted: Jun. 02, 1925

Patent Pictures:
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