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US Patent: 165,800
Lubricator
Patentees:
Samuel H. Davis, Jr. (exact or similar names) - Philadelphia, PA
Howard M. Du Bois (exact or similar names) - Philadelphia, PA

USPTO Classifications:
123/179.11, 184/65

Tool Categories:
industrial tools : tool lubricators

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Oct. 09, 1874
Granted: Jul. 20, 1875

Patent Pictures:
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