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US Patent: 491,549
Blast-pipe for
Patentee: Elonso J. Gordon (exact or similar names) - Greenville, MI USPTO Classifications: 110/298, 285/399 Tool Categories: propulsion and energy : steam apparatus : stationary boilers Assignees: None Manufacturer: Gordon Hollow Blast Grate Co. - Greenville, MI Witnesses: W. M. Conover A. C. Phelps	Patent Dates: Applied: Sep. 26, 1892 Granted: Feb. 14, 1893 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Gordon Hollow Blast Grate Co.

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