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

Quick search:	Patent number:	Patent Date:

US Patent: 446,898
Rifling Machine
Patentee: Charles W. Sponsel (exact or similar names) - Hartford, Hartford County, CT USPTO Classifications: 144/195.6, 409/278 Tool Categories: metalworking machines : rifling machines Assignees: Pratt & Whitney Co. - Hartford, Hartford County, CT Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Oct. 28, 1890 Granted: Feb. 24, 1891 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Pratt, Whitney & Co.

Copyright © 2002-2024 - DATAMP