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US Patent: 2,824,381
Pre-Indicator of Pipe Positions and Bends
Patentee:
Raymond J. Traupmann - Wauwatosa, WI

USPTO Classifications:
248/231.41, 269/19, 269/249, 33/371

Tool Categories:
specialty machines : pipe making machines : pipe and tube benders

Assignees:
Blackhawk Mfg. Co. - West Allis, WI

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Applied: Apr. 29, 1955
Granted: Feb. 25, 1958

Patent Pictures:
USPTO pdf tiff
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