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US Patent: 2,962,291
Self-clamping three-jaw chuck
Patentee:
Anton Szlachetka (exact or similar names) - Duisburg, West Germany

USPTO Classifications:
279/114

Tool Categories:
metalworking machines : metal lathes : metal lathe chucks

Assignees:
Fa. Gustav Espey GmbH - Duisburg, West Germany

Manufacturer:
Fa. Gustav Espey GmbH - Duisburg, West Germany

Witnesses:
Unknown

Patent Dates:
Applied: Apr. 14, 1959
Granted: Nov. 29, 1960

Patent Pictures:
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Description:
A 1961 issue of Machinery (Vol. 98 page 854) has a brief writeup on this chuck "which has been introduced by Gustav Espey, G.m.b.H., 102 Musfeldsrasse, Duisburg, Germany."

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