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US Patent: 120,351
Holders for Screw Cutting Dies
Patentee:
Benjamin L. Walker (exact or similar names) - Sing Sing, Westchester County, NY

USPTO Classifications:
408/239R, 470/83

Tool Categories:
metalworking tools : tap and die holders

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Granted: Oct. 24, 1871

Patent Pictures:
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