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US Patent: 2,112,896
Apparatus for Cleaning Heat Exchangers and the Like
Patentee: Robert M. Husband (exact or similar names) - Bala-Cynwyd, Montgomery County, PA USPTO Classifications: 122/390, 15/316.1, 165/95 Tool Categories: specialty tools : boiler repair tools Assignees: William Sellers & Co., Inc. - Philadelphia, PA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: May 23, 1935 Granted: Apr. 05, 1938 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for William Sellers & Co.

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