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US Patent: 577,904
Expansible reamer
Patentee: Baxter D. Whitney (exact or similar names) - Winchendon, MA USPTO Classifications: 408/164 Tool Categories: Assignees: None Manufacturer: Not known to have been produced Witnesses: Edward S. Duvall, Jr. William L. Boyden	Patent Dates: Applied: Jun. 17, 1893 Granted: Mar. 02, 1897 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Baxter D. Whitney & Son, Inc.

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