Electrostatics
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ERPI Films was one of the largest producers of educational films in the 1930's. They were a division of Western Electric, the manufacturing and supply division of the Bell System.
ERPI Films was one of the largest producers of educational films in the 1930's. They were a division of Western Electric, the manufacturing and supply division of the Bell System.
January 1, 1933
Released
Electrostatics
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