Grace's Guide To British Industrial History

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Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 167,647 pages of information and 247,065 images on early companies, their products and the people who designed and built them.

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,919 pages of information and 233,587 images on early companies, their products and the people who designed and built them.

Leeds and Northrup Co

From Graces Guide

Leeds & Northrup was a Philadelphia-based manufacturer of electronic instruments.

1903 Morris Leeds (who had his own instrument company) partnered with physicist Edwin Northrup to establish the business. They developed and manufactured precision measuring instruments like resistance bridges, potentiometers, galvanometers, and other instruments.

1953 Formed Integra, Leeds and Northrup in UK.

1960 Name of UK company changed to Leeds and Northrup

1978 Leeds and Northrup merged with General Signal Corporation.

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