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US Patent: 551,591
Micrometer Calipers
Patentee: Frank E. Lake (exact or similar names) - Boston, MA USPTO Classifications: 33/818, 82/153 Tool Categories: metalworking tools : machinist tools : measuring tools : micrometers Assignees: None Manufacturer: Not known to have been produced Witnesses: J. H. Robinson Henry C. Radford Charles A. Kellogg	Patent Dates: Applied: Jan. 07, 1895 Granted: Dec. 17, 1895 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens
Description: Howe & Kellogg - patent attorneys

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