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• 19:27, 18 December 2023 Peter talk contribs created page Henry P. Hall (Created page with "thumb|150px|right|Henry P. Hall (undated) '''Henry P. Hall''' graduated from Williams College in 1949 and MIT in 1952 before joining General Radio as a co-op student in 1949. He then worked for close to forty years for the same company until his retirement from GenRad in 1993 as a staff scientist. He is credited with the design of the Digibridge instrument and invented the Orthonull mechanism (see 1650-A). ''please expand bio''...")