Research indexJournal article
特許及實用新案
JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN1 Jan 1941Open access
NobleIDark:/48914/w1/20260523/F7B83925DOI10.2150/jieij1917.25.9_34
Journal articleOpen access
特許及實用新案
JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN · 1941
NobleIDark:/48914/w1/20260523/F7B83925DOI10.2150/jieij1917.25.9_34