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US Patent: 414,906
Screw Machine
Patentee:
Georg Heyne (exact or similar names) - Offenbach-on-Main, Hesse, Germany

USPTO Classifications:
29/54, 29/64

Tool Categories:
metalworking machines : screw machines
specialty machines : nut or bolt making machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Nov. 27, 1888
Granted: Nov. 12, 1889

Patent Pictures:
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