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US Patent: 3,685,335
Tube bender
Patentee: Leonard J. Kowal (exact or similar names) - Prospect Heights, IL USPTO Classifications: 72/217, 72/319, 72/459 Tool Categories: specialty machines : pipe making machines : pipe and tube benders Assignees: Imperial-Eastman Corp. - Chicago, IL Manufacturer: Imperial-Eastman Corp. - Chicago, IL Witnesses: Unknown	Patent Dates: Applied: Nov. 05, 1970 Granted: Aug. 22, 1972 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Imperial Brass Mfg. Co.
Description: This patent number was seen on an "Imperial/Eastman lever type tube bender", along with patent numbers RE24,449 and 2,887,917.

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