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US Patent: 293,400
Lifting-jack
Patentee: Josiah Barrett (exact or similar names) - Allegheny, PA USPTO Classifications: 254/110 Tool Categories: metalworking tools : lifting jacks Assignees: Duff Mfg. Co., Ltd. - Allegheny, PA Manufacturer: Duff Mfg. Co., Ltd. - Allegheny, PA Witnesses: Louis Moeser T. F. Lehmann	Patent Dates: Applied: Dec. 14, 1883 Granted: Feb. 12, 1884 Reissue Information: Reissued as RE10,574 (Mar. 24, 1885) 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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