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www.google.comhttp://www.google.com/patents/US1308432?utm_source=gb-gplus-sharePatent US1308432 - BOLL AND METHOD OE MAKING

Patent US1308432 - BOLL AND METHOD OE MAKING

BOLL AND METHOD OE MAKING

ELEANOR A. LOCHRIDGE et al

Abstract

Overview
Abstract
Drawings
Description
Claims

Patent number: 1308432
Filing date: Jun 12, 1918
Issue date: Jul 1, 1919

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