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US Patent: 851,180
Adjustable gear
Patentee: Ernest T. Mathewson (exact or similar names) - Providence, RI USPTO Classifications: 403/380, 74/395 Tool Categories: specialty machines : rolling mills Assignees: Standard Machinery Co. (Rhode Island) - Providence, RI Manufacturer: Standard Machinery Co. (Rhode Island) - Providence, RI Witnesses: E. I. Ogden Howard E. Barlow	Patent Dates: Applied: Oct. 30, 1906 Granted: Apr. 23, 1907 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Standard Machinery Co. (Rhode Island)

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