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US Patent: 1,740,986
Expansion reamer
Patentee:
James E. Kilzer (exact or similar names) - St. Louis, MO

USPTO Classifications:
408/16, 408/170

Tool Categories:
metalworking machines : drilling and boring : drill bits : reamers

Assignees:
Davis Boring Tool Co. - St. Louis, MO

Manufacturer:
Davis Boring Tool Co. - St. Louis, MO

Witnesses:
Unknown

Patent Dates:
Applied: Sep. 07, 1928
Granted: Dec. 24, 1929

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Davis Boring Tool Co.

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