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US Patent: 325,695
Key Seating Machine
Patentee:
David W. Porter (exact or similar names) - Pittsburgh, PA

USPTO Classifications:
409/307, 409/335

Tool Categories:
metalworking machines : key seating machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Apr. 27, 1885
Granted: Sep. 08, 1885

Patent Pictures:
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