Samenvatting
This is a device by Telefunken to set up an auditive warning system for special occasions as fog, ice etc. The reach of the apparatus is only 2-5 km.
This is a device by Telefunken to set up an auditive warning system for special occasions as fog, ice etc. The reach of the apparatus is only 2-5 km.
Hannover, Telefunken, 1966, 10 p.
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