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US Patent: 79,549
Improved machine for making tin-lined lead pipe
Patentees: Stillman E. Chubbuck (exact or similar names) - Boston, MA J. H. Chadwick (exact or similar names) - Boston, MA USPTO Classifications: 72/258, 72/264 Tool Categories: specialty machines : pipe making machines Assignees: J. H. Chadwick - Boston, MA Manufacturer: Not known to have been produced Witnesses: J. T. Ellis J. W. Keith	Patent Dates: Granted: Jul. 07, 1868 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for S. E. Chubbuck & Sons

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