US Patent: 442,710 - Screw-Driver and Bit-Holder


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


Quick search:	Patent number:	Patent Date:

US Patent: 442,710

Screw-Driver and Bit-Holder

Patentee:

Leonardo McKeel Marsh (exact or similar names) - Spaulding, NE

USPTO Classifications:

279/79, 279/89, 7/165, 7/167, 81/177.85, 81/436

Tool Categories:

woodworking tools : hand drills : drill accessories

screwdrivers

Assignees:

Leonardo McKeel Marsh - Spaulding, NE

G. N. Adams - Spaulding, NE

John W. Brady - Spaulding, NE

Manufacturer:

Not known to have been produced

Witnesses:

W. E. Hannon

C. J. Marsh

Patent Dates:
Applied:	Mar. 22, 1890
Granted:	Dec. 16, 1890

Patent Pictures:

USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Steve Gosselin

Description:

This device converts from a drill bit holder to a screwdriver by slipping a sleeved screwdriver bit over the drill bit onto the tapered square exterior of the drill bit socket.