Kashfiyot
Xizmatlar
Identifikatsiya
Ishlab chiquvchilar uchun
Ekotizim
4 ta ish
Public Works Research Institute
Nobuo Ishiyama, Masahiro Ryo, Taiga Kataoka +6
Nobuo Ishiyama, Masanao Sueyoshi, Jorge García Molinos +7
Nobuo Ishiyama, Shigeya Nagayama, Haruo IWASE +2