Tankou bakuhatsu no toki ni okeru tsuuki fukkyuu ni tsuite
Kaigai shokoku tankou gasu tanjin bakuhatsu no yobou kisoku
Gassan yawa
Bujun tankou
Asamayama bakuhatsu houkoku
Kougyou keisatsu kisoku sekitankou bakuhatsu torishimari kisoku : fu tansangasu kani teiryouhou
Gasu tanjin bakuhatsu denpa riron
Tankou annai
Tankou dokuhon
Tankou dokuhon
Tankou dokuhon
Douba sanbou yawa
Douba sanbou yawa
Eikoku tankou jijou
炭坑爆発心得
Kouzan hattatsushi
Tanjin bakuhatsu oyobi sono yobou ni tsuite
Tanjin bakuhatsu shiken souchi chousa houkoku
Boruneo yawa
Arabiya yawa
Harubin yawa
Higashi Ezo yawa
Bakuhatsu shiken koudou ni okeru bakuyaku jikken seiseki houkoku
Bakuhatsu shiken koudou ni okeru bakuyaku jikken seiseki houkoku
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Uploaded: 2020-12-17