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25 July 2024
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Created page with "{{Person |Names=Donald Bellamy Sinclair |Birth date=1910-05-23 |Birth place=Winnipeg, Man., Canada. |Death date=1985-08-24 |Death place= |Countries=Canada, US |Affiliations=University of Manitoba, MIT, New York Telephone Company, Bell Telephone Laboratories, Western Electric, General Radio |Wikidata id=Q22018784 }} joined General Radio as an engineer in July 1936. He held numerous engineering and management positions, including those of chief engineer (1950 to 1960) and..."
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