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US Patent: 660,760
Tapping-machine
Patentee:
Oscar Mueller (exact or similar names) - Decatur, IL

USPTO Classifications:
137/317

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

Assignees:
H. Mueller Mfg. Co. - Decatur, IL

Manufacturer:
Not known to have been produced

Witnesses:
Ernest Skelley
Haubert Black

Patent Dates:
Applied: Aug. 30, 1900
Granted: Oct. 30, 1900

Patent Pictures:
USPTO (New site tip)
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Report data errors or omissions to steward Jeff Joslin
Description:
"This invention relates to machines for drilling, tapping and inserting corporation-cocks in pipes in which water is under pressure..."

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