Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 147,654
Screw Driver
Improvement in Screwdriver blades
Patentee:
Sylvanus R. Kneeland (exact or similar names) - Charlsetown, MA

USPTO Classifications:
81/451

Tool Categories:
screwdrivers : screwdriver blades

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
C. A. Shaw
H. E. Metcalf

Patent Dates:
Applied: Feb. 02, 1874
Granted: Feb. 17, 1874

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Steve Gosselin
Description:
This Patent is an improvement of Patent145506, Its for a sleeve that keeps the screwdriver from slipping off the screw and damaging the surface that the screw is being driven into.

Copyright © 2002-2024 - DATAMP