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

Quick search:	Patent number:	Patent Date:

US Patent: 446,622
Drill Jar
Patentee: Francis A. Flanegin (exact or similar names) - Washington, DC USPTO Classifications: 175/293, 29/254, 76/108.4 Tool Categories: specialty machines : well drilling machines Assignees: Francis A. Flanegin - Washington, DC David C. Reinohl - Washington, DC Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Dec. 12, 1890 Granted: Feb. 17, 1891 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

Copyright © 2002-2024 - DATAMP