Journal of the Illuminating Engineering Institute of Japan
Online ISSN : 2185-1506
Print ISSN : 0019-2341
ISSN-L : 0019-2341
An Improved Optical Experiments on Signal Glases
T. Abe
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1931 Volume 15 Issue Special Pages 34-38

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[in Japanese]
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© The Illuminating Engineering Institute of Japan
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