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www.google.cahttp://www.google.ca/patents/US2423320?utm_source=gb-gplus-sharePatent US2423320 - WELDER S HELMET

Patent US2423320 - WELDER S HELMET

WELDER S HELMET

Samuel C. Hurley et al

Abstract

Overview
Abstract
Drawings
Description
Claims

Patent number: 2423320
Filing date: 29 Jul 1944
Issue date: 1 Jul 1947

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