Taihei Kogyo K.K., Kogyo Kenkyujo (File #273)
Noguchi Kenkyujo (File #224)
Ogino Kagaku Kenkyujo (File #161)
Shiomi Rikigaku Kenkyujo (File #241)
Tokushu Kobutsu Kenkyujo (File #252)
Chuo Koku Kenkyujo, Tokyo (File #37)
Seika Kogyo K.K. (Sumitomo Kogyo) (File #215)
Kawaminami Kogyo (File #102)
Nippon Kogyo (File #177)
Katakura Kogyo (File #101)
Riken Kogyo (File #171)
Nitto Kogyo (File #226)
Denki Tsushin-Sho Denki Tsushin Kenkyujo (File #42)
Azabu Kogyo K.K. (File #29)
Kamioka Kogyo K.K. (File #92)
Kanto Denki Kogyo (File #96)
Tohoku Kinzoku Kogyo (File #256)
Aichi Kagaku Kogyo (File #23)
Kosaka Dowa Kogyo (File #124)
Riken Noson Kogyo (File #172)
Nippon Carbide Kogyo (File #201)
Santoku Kogyo K.K. (File #216)
Shinko Kinzoku Kogyo (File #240)
Hamamatsu Kogyo Daigaku (File #65)
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Uploaded: 2020-12-17