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US Patent: 908,462
Oscillating mechanism for lap-grinding machines
Patentee: John P. Hedstrom (exact or similar names) - Big Rapids, MI USPTO Classifications: 451/157 Tool Categories: tool making : making handsaws Assignees: Hanchett Swage Works - Big Rapids, MI Manufacturer: Not known to have been produced Witnesses: Louis B. Hanchett Ray L. Swift	Patent Dates: Applied: Feb. 29, 1908 Granted: Jan. 05, 1909 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Hanchett Swage Works

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