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US Patent: 510,329
Screw Cutting Machine
Patentee:
Joseph Davidsohn (exact or similar names) - Berlin, Prussia, Germany

USPTO Classifications:
82/110, 82/132

Tool Categories:
metalworking machines : screw machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Jul. 30, 1892
Granted: Dec. 05, 1893

Patent Pictures:
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Description:
Patented in Germany, 22 Jun., 1892, #67,664; in France, 29 Jun., 1892, #222,691 and in England, 16 Jul., 1892, #13,100.

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