After the 1942 attack on the railway transformer, Chief of Electrical Engineering at the mine, Petter Deinboll's own father, engineer Petter Blessing Deinboll, was assigned the task of restoring power.
Following the 1942 assault on the railway transformer, Chief of Electrical Engineering at the mine, Petter Deinboll's own father, engineer Petter Blessing Deinboll, was assigned the duty of repairing power.