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US Patent: 667,512
Gear Cutting Engine
Patentee:
Charles H. Field (exact or similar names) - Providence, RI

USPTO Classifications:
409/56, 409/61, 451/214, 74/817

Tool Categories:
metalworking machines : gear making machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Jun. 14, 1900
Granted: Feb. 05, 1901

Patent Pictures:
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