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US Patent: 2,046,839
Screw
Patentees: Henry F. Phillips (exact or similar names) - Portland, OR Thomas M. Fitzpatrick (exact or similar names) - Portland, OR USPTO Classifications: 411/404, 411/919 Tool Categories: Assignees: Phillips Screw Company - Wilmington, DE Manufacturer: Unknown Witnesses: Unknown	Patent Dates: Applied: Jan. 15, 1935 Granted: Jul. 07, 1936 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Russ Allen.
Description: Improvement of Phillips previous application of 9 May 1933. Companion patent with the corresponding screwdriver 2046838.

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