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 247,064 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.
1961 The Glenn L. Martin Co, aircraft manufacturer and defence contractor, merged with the American-Marietta Corporation, a large sand and gravel company, to form the Martin Marietta Corporation.
1995 Merged with Lockheed Corporation forming Lockheed Martin
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