Home| FAQ	Search:Advanced|Person|Company| Type|Class	Login

Quick search:	Patent number:	Patent Date:

US Patent: 138,690
Improvement in piston-packings
Patentee: Charles E. Perkins (exact or similar names) - Malone, NY USPTO Classifications: 92/184, 92/258 Tool Categories: propulsion and energy : steam engines : steam engine pistons : piston ring and packing Assignees: None Manufacturer: Perkins Bros. - Malone, NY Witnesses: S. S. Willard William E. Hall	Patent Dates: Applied: Sep. 24, 1872 Granted: May 06, 1873 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

Copyright © 2002-2026 - DATAMP