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CIRCA 1928 - In this animated film, reporters interview a telephone.
CIRCA 1928 - In this animated film, a film strip explains how talking pictures are made and exhibited.
CIRCA 1928 - In this animated film, a telephone explains what it and a microphone have in common.
CIRCA 1928 - In this animated film, the function of an electrical stethoscope at a medical school is explained.
CIRCA 1928 - In this animated film, the use of an electrical stethoscope is demonstrated.
Usa - 1933 - in this animated film, the little king learns about the nra (national recovery act) that could help pull his kingdom out of the great depression.
CIRCA 1961 - JFK concludes his inaugural address in this Iranian newsreel.

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1060928104
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ID Video có sẵn: 1060928104

CIRCA 1928 - In this animated film, a telephone shows reporters how a public address system can amplify an orator's voice.

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