Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 289,512
Graduated Measure of Length
Patentee:
Samuel Darling - Providence, RI

USPTO Classifications:
33/494, D10/71

Tool Categories:
rules : rule graduations

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Jacob Kettner
John E. Hall

Patent Dates:
Applied: Sep. 08, 1883
Granted: Dec. 04, 1883

Patent Pictures:
USPTO pdf tiff
Google Patents
Report data errors or omissions
Description:
Scales of ten thousandths of an inch and eleven thousandths of an inch. Darling references his earlier patent 230,619 which uses a line of pricks at an angle with the graduations.

Copyright © 2002-2017 - DATAMP