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US Patent: 1,420,600
Key Seating Machine
Patentee:
Christian Winkler (exact or similar names) - Portland, Multnomah County, OR

USPTO Classifications:
409/332

Tool Categories:
metalworking machines : key seating machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Jun. 02, 1920
Granted: Jun. 20, 1922

Patent Pictures:
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