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Ray banning

By: Language: English Series: Building ; 256(7709) 16 August 1991, 52-53 (2)Publication details: 1991Subject(s): Summary: Explains what electromagnetic interference (EMI) is, and how it interferes with office equipment and can pose a security threat. Refers to ways of protecting buildings.

Explains what electromagnetic interference (EMI) is, and how it interferes with office equipment and can pose a security threat. Refers to ways of protecting buildings.