How to mend Bell & Howell 458a

How can I fix movie projector Bell & Howell model #456A ?

Bell & Howell Filmsound 8 Model 458?

Trying to find a repair man for my Bell and Howell slide projector?

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Bell & Howell projector?

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Obtaing Repair Manuals?

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Bell & Howell Model 456 Movie Projector?

compatible projector?

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