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US Patent: 1,254,176
Automatic Thread Rolling Machine
Patentee:
Lars William Thorsell (exact or similar names) - Waterbury, CT

USPTO Classifications:
221/251, 470/178, 72/90

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
W. F. McGinn
Patent Dates:
Applied: Dec. 27, 1916
Granted: Jan. 22, 1918

Patent Pictures:
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