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US Patent: 1,762,315
Ratchet screw driver
Patentees: Henry A. Ryther (exact or similar names) - Millers Falls, MA Donald B. Swain (exact or similar names) - Millers Falls, MA USPTO Classifications: 74/124, 81/29 Tool Categories: screwdrivers : screwdriver mechanisms : spiral screwdrivers Assignees: Millers Falls Co. - Millers Falls, MA Manufacturer: Millers Falls Co. - Millers Falls, MA Witnesses: Unknown	Patent Dates: Applied: Jun. 23, 1925 Granted: Jun. 10, 1930 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Steve Gosselin Randy Roeder's Millers Falls Co. site "Vintage Machinery" entry for Millers Falls Co.

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