Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 199,425
Centering Square & Protractor
Patentee:
Eric Ericson - Joliet, IL

USPTO Classifications:
33/403

Tool Categories:
metalworking tools : machinist tools : measuring tools : protractors
layout tools : protractors
layout tools : marking gauges : center marking gauges

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Theodore Gurlieb
l. Theodore Flodin

Patent Dates:
Applied: Nov. 10, 1877
Granted: Jan. 22, 1878

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

Copyright © 2002-2017 - DATAMP