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US Patent: 520,519
Screw-driver
Patentee: John J. Edwards (exact or similar names) - Grand Rapids, MI USPTO Classifications: 271/65, 74/127, 74/1R Tool Categories: screwdrivers : screwdriver mechanisms : spiral screwdrivers Assignees: Allen A. Bowser - Fort Wayne, IN Sylvanus F. Bowser - Fort Wayne, IN Manufacturer: S. F. Bowser & Co. - Fort Wayne, IN Witnesses: H. B. Huston Thomas Edwards, Jr.	Patent Dates: Applied: Jul. 19, 1893 Granted: May 29, 1894 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Steve Gosselin
Description: Information taken from Clifford D. Fales' database. This patent date does not appear on BOWSER models but does match the design of one BOWSER model. See patent 487,946. Marked, "S. F. BOWSER & CO. / PATD. / FT. WAYNE, IND"

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