Search
Images
Maps
Play
YouTube
News
Gmail
Drive
More
»
Advanced Patent Search
|
Plain text
|
Web History
|
Sign in
Advanced Patent Search
Patents
www.google.ca
http://www.google.ca/patents/US2826636?utm_source=gb-gplus-share
Patent US2826636 - SOUND AMPLIFYING APPARATUS FOR TELE-
SOUND AMPLIFYING APPARATUS FOR TELE-
Donald C. Beatty et al
Overview
Abstract
Drawings
Description
Claims
Patent number
: 2826636
Filing date
: 27 Jan 1956
Issue date
: 11 Mar 1958
Plain text
PDF