Abstract
In planning and asseeaing lighting installations in the openit ie advised that a luminous flux diagram be drtt9m forevery type of lighting fitting.
In planning and asseeaing lighting installations in the openit ie advised that a luminous flux diagram be drtt9m forevery type of lighting fitting.
In: Lichttechnik 21 (1969) no.2, febr., p.13A/16A
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