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US Patent: 640,220
Lathe
Patentees:
Salomon Perle (exact or similar names) - Breslau, Lower Silesia, Germany
Eugen Perle (exact or similar names) - Breslau, Lower Silesia, Germany
Wilhelm Buttermilch (exact or similar names) - Breslau, Lower Silesia, Germany

USPTO Classifications:
82/110, 82/136, 82/141

Tool Categories:
metalworking machines : metal lathes : screwcutting lathes

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Mar. 10, 1898
Granted: Jan. 02, 1900

Patent Pictures:
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