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US Patent: 1,256,462
Boring Tool Holder
Patentees:
John H. Frey (exact or similar names) - Erie, Erie County, PA
Matthew Mayer (exact or similar names) - Erie, Erie County, PA

USPTO Classifications:
279/6

Tool Categories:
metalworking machines : drilling and boring : drilling and boring tool holders

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: May 22, 1917
Granted: Feb. 12, 1918

Patent Pictures:
USPTO (New site tip)
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