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aperture card

noun

Definition of aperture card 

: a punched card for data processing in which one or more frames of a microfilmed document are mounted

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First Known Use of aperture card

1959, in the meaning defined above

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Dictionary Entries near aperture card

apertural

apertural canal

aperture

aperture card

apertured

aperture plate

aperture ratio

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Time Traveler for aperture card

The first known use of aperture card was in 1959

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