DK73145C -
System with a gas discharge tube and an electromagnetic switch as well as an electromagnetic switch for use in such a system.
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System with a gas discharge tube and an electromagnetic switch as well as an electromagnetic switch for use in such a system.
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DK13348A1947-01-141948-01-10
System with a gas discharge tube and an electromagnetic switch as well as an electromagnetic switch for use in such a system.
DK73145C
(en)
Apparatus with an electric discharge tube in which a band-shaped beam can be held in various positions, and electric discharge tube for use in the apparatus.