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US Patent: 575,148
Chaser Die
Patentee:
Joseph L. Chapman (exact or similar names) - Hartford, Hartford County, CT

USPTO Classifications:
408/221, 408/233, 470/185, 470/190

Tool Categories:
metalworking tools : thread chasers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Mar. 05, 1896
Granted: Jan. 12, 1897

Patent Pictures:
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