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US Patent: 649,173
Tapping-machine
Patentee:
Henry Mueller - Decatur, IL

USPTO Classifications:
137/318

Tool Categories:
metalworking machines : drilling and boring : tapping machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Oscar Mueller
Ernest Skelley

Patent Dates:
Applied: Nov. 03, 1899
Granted: May 08, 1900

Patent Pictures:
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