Search Images Maps Play YouTube News Gmail Drive More »

Advanced Patent Search | Plain text | Web History | Sign in

Advanced Patent Search

Patents

www.google.cahttp://www.google.ca/patents/US167234?utm_source=gb-gplus-sharePatent US167234 - IMPROVEMENT IN HEAD-MUFFS

Patent US167234 - IMPROVEMENT IN HEAD-MUFFS

IMPROVEMENT IN HEAD-MUFFS

HEIMAKN FTJBST et al

Abstract

Overview
Abstract
Drawings
Description
Claims

Patent number: 167234
Issue date: 31 Aug 1875

Next Page