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US Patent: 178,967
Hydraulic Apparatus for Holding Bars of Iron Against the Pressure Required to Upset Them
Patentee:
William Sellers - Philadelphia, PA

USPTO Classifications:
72/316, 72/357

Tool Categories:
metalworking machines : metalworking machine mechanisms

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Dec. 07, 1874
Granted: Jun. 20, 1876

Patent Pictures:
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