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/US1223615?utm_source=gb-gplus-share
Patent US1223615 - BICHABDS
BICHABDS
W. RICHARDS
› Overview
Abstract
Drawings
Description
Claims
Patent number
: 1223615
Filing date
: Feb 5, 1916
Issue date
: Apr 24, 1917
Inventor
:
W. RICHARDS
Current U.S. Classification
:
356/143
View patent at USPTO
Search USPTO Assignment Database
Drawings
Drawings
Drawings
