Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 341,378
Spirit Level for Boring Bits
Patentee:
William E. Gwyer - New York, NY

USPTO Classifications:
33/334, 33/369, 408/116, 408/16

Tool Categories:
layout tools : levels
woodworking tools : hand drills : drill accessories

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
James T. Graham
Edward Tate

Patent Dates:
Applied: Sep. 22, 1885
Granted: May 04, 1886

Patent Pictures:
USPTO pdf tiff
Google Patents
Report data errors or omissions
Description:
Level attaches directly to the bit and also has a balancing weight opposite the level. Designed for horizontal boring only as the level hangs on the bit.

Copyright © 2002-2019 - DATAMP