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Application filed by Philips NvfiledCriticalPhilips Nv
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Publication of DK71053CpublicationCriticalpatent/DK71053C/en
DK116243A1942-04-251943-04-21
Apparatus for switching off direct or alternating current of high voltage of 10 kV and more, especially of high power.
DK71053C
(en)