Grace's Guide To British Industrial History

Registered UK Charity (No. 1154342)

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 167,712 pages of information and 247,105 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.

Harold Martin: Difference between revisions

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1921 Inventor of the ''Cyc-Arc'' welding machine<ref>The Engineer 1921/07/01</ref>
1923 Assistant to the chief electrical engineer of Portsmouth Dockyard, [[L. J. Steele]]
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[[Category: Biography]]
[[Category: Biography]]
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[[Category: Births]]
[[Category: Deaths]]
[[Category: Deaths]]

Latest revision as of 12:02, 28 September 2016

1921 Inventor of the Cyc-Arc welding machine[1]

1923 Assistant to the chief electrical engineer of Portsmouth Dockyard, L. J. Steele


See Also

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Sources of Information

  1. The Engineer 1921/07/01