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Writing letters with orange retro vintage typewriter
CIRCA 1970s - Shots from the 1972 Presidential Primaries.
CIRCA 1970s - Shots from the 1972 Presidential Primaries.
United States CIRCA 1940s: Boy watches pressure meter rise to one volt. Boy writes down Volt - Pressure. Boy flips through book.
United States CIRCA 1940s: Illustration of Andre Ampere, French physicist. Boy speaks to Ampere in the book.
United States CIRCA 1940s: Teen boy sits at kitchen table with dry cell batteries. Train moves down truck. Boy puts down lightbulb on truck.
1940s: Kitchen. Young man picks up light bulb. Hand turns page to portrait of man.

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3421721769
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Identificación del Video de stock: 3421721769

Estados Unidos CIRCA 1940: Adolescente escribe con lápiz: Amp = tres voltios sobre seis ohmios. .5 El chico recoge la bombilla. Texto impreso en bombilla: Sylvania, 100 vatios, 120 v.

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  • 24 fps

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  • 0:39

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