Home
|
FAQ
Search:
Advanced
|
Person
|
Company
|
Type
|
Class
Login
Quick search:
Patent number:
Patent Date:
US Patent: 94,503
Improvement in Rasps
Patentee:
William T. Nicholson
- Providence, RI
USPTO Classifications:
407/29.1
Tool Categories:
metalworking tools
:
files
Assignees:
Nicholson File Co.
- Providence, RI
Manufacturer:
Not known to have been produced
Witnesses:
Benj. F. Thurston
Peter F. Hughes
Patent Dates:
Granted:
Sep. 07, 1869
Patent Pictures:
USPTO
pdf
tiff
Google Patents
Report data errors or omissions
Description:
The cutting edge of each tooth is curved in two directions with the metal raised by the chisel a convex outer surface to provide a shearing cut.
Copyright © 2002-2019 - DATAMP