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US Patent: 179,130
Improvement in pipe-bending mandrels
Patentee:
Morris L. Orum - Philadelphia, PA

USPTO Classifications:
72/466, 72/479, 72/481.1

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Frank E. Harding
J. Snowden Bell

Patent Dates:
Applied: Jun. 01, 1876
Granted: Jun. 27, 1876

Patent Pictures:
USPTO pdf tiff
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