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Scientific American

January 1, 1928

1 min read

Spring Safety Stick, "Time of Flight" Clock and more

This Department Will Keep Our Readers Informed of the Latest Facts About Airplanes and Airships

By Alexander Klemin

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Scientific American Magazine Vol 138 Issue 1This article was originally published with the title “Spring Safety Stick, Time of Flight Clock, and more” in Scientific American Magazine Vol. 138 No. 1 (), p. 61
doi:10.1038/scientificamerican0128-61
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