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Production Companies (1)
Distributors (1)
Other Companies (6)
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Production Companies
GB Instructional Films
Distributors
GB Equipments
(United Kingdom, 1951)
Other Companies
Cinema Television
(Messrs. Cinema Television, co-operation and guidance)
Bush Radio
(Messrs. Bush Radio, co-operation and guidance)
Mullard
(Messrs. Mullard Electronic Products, co-operation and guidance)
EMI Research Laboratories
(Messrs. EMI Research Laboratories, co-operation and guidance)
Science Museum
(co-operation and guidance)
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