Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 227,962
Dividing Engine
Patentee:
Samuel Darling - Providence, RI

USPTO Classifications:
33/702

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
John E. Hall
Henry Drury

Patent Dates:
Applied: Jan. 10, 1880
Granted: May 25, 1880

Patent Pictures:
USPTO pdf tiff
Google Patents
Report data errors or omissions
Description:
While described as a dividing engine, this patent is better described as a comparator as the patent is for the blower that helps to maintanin the temperature of tje mathematical instrument being measured.

Copyright © 2002-2019 - DATAMP