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

Quick search:	Patent number:	Patent Date:

US Patent: 2,457,383
Apparatus for grinding
Patentee: Frederick G. Krafft (exact or similar names) - Springfield, OH USPTO Classifications: 125/11.03, 451/216, 451/222, 451/237 Tool Categories: metalworking machines : grinders Assignees: Thompson Grinder Co. - Springfield, OH Manufacturer: Thompson Grinder Co. - Springfield, OH Witnesses: Unknown	Patent Dates: Applied: Sep. 21, 1946 Granted: Dec. 28, 1948 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Thompson Grinder Co.
Description: This patent covers "an improved process and mechanism for the production of thread rolling dies."

Copyright © 2002-2024 - DATAMP