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US Patent: 136,736
Expanding Boring Tools
Patentee:
Joseph K. Kacerovsky (exact or similar names) - Bridgeport, Fairfield County, CT

USPTO Classifications:
408/174

Tool Categories:
metalworking machines : drilling and boring : boring heads

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Granted: Mar. 11, 1873

Patent Pictures:
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