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US Patent: RE11,051
Lifting-jack
Patentee: Josiah Barrett (exact or similar names) - Allegheny, PA USPTO Classifications: 254/111 Tool Categories: metalworking tools : lifting jacks Assignees: None Manufacturer: Duff Mfg. Co., Ltd. - Allegheny, PA Witnesses: F. G. Kay J. N. Cooke	Patent Dates: Applied: Mar. 12, 1889 Granted: Dec. 31, 1889 Reissue Information: Reissue of 399,470 (Mar. 12, 1889) Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Duff Mfg. Co.

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