Production(s): Pennsylvania Film Productions , Institute of Makers of Explosives , E.I. du Pont de Nemours and Co. ,
Date de sortie: 1957-01-01
This film shows the use of dynamite and dramatizes the dangers hidden in the blasting cap..Production(s): Pennsylvania Film Productions , Institute of Makers of Explosives , E.I. du Pont de Nemours and Co. ,
Date de sortie: 1957-01-01
This film shows the use of dynamite and dramatizes the dangers hidden in the blasting cap..cast(s):