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US Patent: 138,243
Improvement in lubricators
Patentee: John Gates (exact or similar names) - Portland, OR USPTO Classifications: 184/104.1, 184/50.1 Tool Categories: industrial tools : lubricators Assignees: None Manufacturer: Seibert Cylinder Oil Cup Co. - Boston, MA Witnesses: Tyler Woodward William Stephens	Patent Dates: Applied: Aug. 23, 1872 Granted: Apr. 29, 1873 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Seibert Cylinder Oil Cup Co.

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