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US Patent: 680,425
Boring Tool Holder
Patentee:
Bernard O. Breitfield (exact or similar names) - Philadelphia, PA

USPTO Classifications:
82/161

Tool Categories:
metalworking machines : metal lathes : lathe tool holders and tool posts

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Apr. 19, 1901
Granted: Aug. 13, 1901

Patent Pictures:
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