Matches in DBpedia 2016-04 for { ?s ?p "The Instructograph was a paper tape-based machine used for the study of Morse code.The paper tape mechanism consisted of two reels which passed a paper tape across a reading device that actuated a set of contacts which changed state dependent on the presence or absence of hole punches in the tape."@en }
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- Instructograph comment "The Instructograph was a paper tape-based machine used for the study of Morse code.The paper tape mechanism consisted of two reels which passed a paper tape across a reading device that actuated a set of contacts which changed state dependent on the presence or absence of hole punches in the tape.".
- Q15995190 comment "The Instructograph was a paper tape-based machine used for the study of Morse code.The paper tape mechanism consisted of two reels which passed a paper tape across a reading device that actuated a set of contacts which changed state dependent on the presence or absence of hole punches in the tape.".