DK78297C -
Ignition system for remotely and individually igniting a plurality of explosive charges, particularly in the interior of earth boreholes.
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Ignition system for remotely and individually igniting a plurality of explosive charges, particularly in the interior of earth boreholes.
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DK372351A1951-01-301951-12-08
Ignition system for remotely and individually igniting a plurality of explosive charges, particularly in the interior of earth boreholes.
DK78297C
(en)
Arrangement for the optional triggering of the remote ignition of a plurality of propellant or explosive charges, in particular in the case of firing devices in deep boreholes