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www.google.comhttp://www.google.com/patents/US1010842?utm_source=gb-gplus-sharePatent US1010842 - BALDWIN Patent US1010842 - BALDWIN

Patent US1010842 - BALDWIN

BALDWIN

FREDERICK W. BALDWIN et al

Abstract

Overview
Abstract
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Description
Claims

Patent number: 1010842
Issue date: Dec 5, 1911

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