Bonanza 108: The Philip Diedesheimer Story
Bonanza 108: The Philip Diedesheimer Story After a mine disaster, engineer Philip Diedesheimer devises a safer system of timber supports, then must persuade owners to value miners’ lives over cost.
Bonanza 108: The Philip Diedesheimer Story After a mine disaster, engineer Philip Diedesheimer devises a safer system of timber supports, then must persuade owners to value miners’ lives over cost.