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US Patent: 2,177,820
Boring Chuck
Patentee:
Harry F. Brown (exact or similar names) - Detroit, Wayne County, MI

USPTO Classifications:
279/6

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Jun. 23, 1937
Granted: Oct. 31, 1939

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
Description:
This patent was improved by patent #2,276,462.

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