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

Quick search:	Patent number:	Patent Date:

US Patent: 646,439
Expansible Bit
Patentee: Joseph P. Lavigne (exact or similar names) - New Haven, CT USPTO Classifications: 408/195, 408/212 Tool Categories: woodworking tools : hand drills : drill bits : adjustable drill bits Assignees: John J. Tower - New York, NY Manufacturer: Not known to have been produced Witnesses: John J. Tower William H. Cole	Patent Dates: Applied: Sep. 15, 1899 Granted: Apr. 03, 1900 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin (dm)

Copyright © 2002-2024 - DATAMP