Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 100,440
Improvement in auger for boring square holes
Patentee:
Alfred T. Perrine - Louisville, KY

USPTO Classifications:
408/30

Tool Categories:
woodworking tools : chisels : mortise chisels
woodworking tools : hand drills : drill bits

Assignees:
Alfred T. Perrine - Louisville, KY
William C. Chase - Providence, RI

Manufacturer:
Not known to have been produced

Witnesses:
J. Erastus Lester
George H. McCann

Patent Dates:
Granted: Mar. 01, 1870

Patent Pictures:
USPTO pdf tiff
Google Patents
Report data errors or omissions

Copyright © 2002-2017 - DATAMP