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US Patent: 158,539
Improvement in cement pipes
Patentee: Melvin Stephens (exact or similar names) - Brooklyn, NY USPTO Classifications: 285/290.3, 285/423, 285/55 Tool Categories: water distribution systems : pipes Assignees: None Manufacturer: Not known to have been produced Witnesses: Charles H. Smith George T. Pinckney	Patent Dates: Applied: Nov. 03, 1874 Granted: Jan. 05, 1875 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Stephens Patent Vise Co.

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