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US Patent: 2,398,491
Boring Head
Patentee:
Nicholas Bell (exact or similar names) - Dearborn, Wayne County, MI

USPTO Classifications:
407/74, 407/76, 408/181, 408/239R

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Dec. 18, 1942
Granted: Apr. 16, 1946

Patent Pictures:
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