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US Patent: 1,611,042
Variable-speed mechanism
Patentees: Herbert L. Johnston (exact or similar names) - Troy, OH Milton K. Akers (exact or similar names) - Troy, OH USPTO Classifications: 310/91, 366/601, 475/11, 475/207, 475/208, 477/19 Tool Categories: Assignees: Hobart Mfg. Co. - Troy, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Aug. 24, 1925 Granted: Dec. 14, 1926 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Hobart Mfg. Co.

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