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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:
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Google Patents
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Description:
John J. Halstead & son - patent attorneys

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