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US Patent: 159,675
Improvement in piston-packings
Patentee: John W. Hill (exact or similar names) - Dayton, OH USPTO Classifications: 277/453, 277/488 Tool Categories: propulsion and energy : steam engines : steam engine pistons : piston ring and packing Assignees: John W. Hill - Dayton, OH Herrman & Herchelrode Mfg. Co. - Dayton, OH Manufacturer: Herrman & Herchelrode Mfg. Co. - Dayton, OH Witnesses: William R. Marshall C. Herchelrode	Patent Dates: Applied: Jan. 06, 1875 Granted: Feb. 09, 1875 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Herrman & Herchelrode Mfg. Co.

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