Search
Images
Maps
Play
YouTube
News
Gmail
Drive
More
»
Advanced Patent Search
|
Web History
|
Sign in
Advanced Patent Search
Patents
www.google.com
http://www.google.com/patents/US102856?utm_source=gb-gplus-share
Patent US102856 - IMPROVEMENT IN ELECTRO-MAGNETS
IMPROVEMENT IN ELECTRO-MAGNETS
S. FROST
› Overview
Abstract
Drawings
Description
Claims
Patent number
: 102856
Issue date
: May 10, 1870
Inventor
:
S. FROST
Current U.S. Classification
:
335/296
;
336/184
;
336/212
;
336/225
View patent at USPTO
Search USPTO Assignment Database
Drawings
Drawings