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US Patent: 370,379
Pen Cleaner
Patentee: Samuel Darling (exact or similar names) - Providence, RI USPTO Classifications: 118/270, 15/104.92, 15/423 Tool Categories: trade specific : draftsman Assignees: None Manufacturer: Not known to have been produced Witnesses: Jacob Kettner John E. Hall F. L. Ourand William L. Sherdan	Patent Dates: Applied: Aug. 10, 1883 Granted: Sep. 27, 1887 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens
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