Search
Images
Maps
Play
YouTube
News
Gmail
Drive
More
»
Advanced Patent Search
|
Plain text
|
Web History
|
Sign in
Advanced Patent Search
Patents
www.google.com.au
http://www.google.com.au/patents/US786457?utm_source=gb-gplus-share
Patent US786457 - SPECULUM
SPECULUM
FRANK MCGINNIS et al
Overview
Abstract
Drawings
Description
Claims
Patent number
: 786457
Filing date
: 29 Apr 1904
Issue date
: 4 Apr 1905
Plain text
PDF
