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US Patent: 179,090
Improvement in corkscrews
Patentee: Joshua Barnes (exact or similar names) - Brooklyn, NY USPTO Classifications: 81/3.45 Tool Categories: household : cork extractors : cork easers Assignees: None Manufacturer: Unknown Witnesses: Charles G. Coe Christopher J. McLaughlin	Patent Dates: Applied: Mar. 27, 1876 Granted: Jun. 27, 1876 Patent Pictures: [ 1 | 2 ] USPTO (New site tip) Google Patents Report data errors or omissions to steward Mark Woodard
Description: The duplex worm was designed to extracts small corks (using the inner worm) or larger corks (using both worms.)

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