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US Patent: 132,763
Improvement in Watchmakers' Lathes and Chucks
Patentee:
Caleb Hopkins (exact or similar names) - Philadelphia, PA

USPTO Classifications:
279/8, 82/116, 82/137

Tool Categories:
metalworking machines : metal lathes : watchmakers lathes

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
T. L. Borsch
Charles N. Dunham

Patent Dates:
Granted: Nov. 05, 1872
Antedated: Nov. 02, 1872

Patent Pictures:
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