Journal of Japan Society for Safety Engineering
Online ISSN : 2424-0656
Print ISSN : 0570-4480
ISSN-L : 0570-4480
TECHNICAL REPORT
[title in Japanese]
JOURNAL FREE ACCESS

1968 Volume 7 Issue 2 Pages 164-170

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Article 1st page
© 1968 JAPAN SOCIETY FOR SAFETY ENGINEERING
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