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US Patent: 114,824
Improvement in files
Patentee:
Amasa Hyland (exact or similar names) - Hingham, MA

USPTO Classifications:
407/29.1, 76/31

Tool Categories:
metalworking tools : files

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
L. E. Batcheller
N. W. Stearns
Patent Dates:
Granted: May 16, 1871

Patent Pictures:
USPTO (New site tip)
Google Patents
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