TRIZ - v2.0
In Europe 1926, radio telephony was first used on the first-class passenger trains Also introduced on passenger airplanes for air traffic security Germans.
Cryogenic rocket engine propellents
022 DEC-JAN 1963-64
WORKING IN SPACE BY AND USA RUSSIA CHINA EUROPE JAPAN INDIA.
Yuri Gagarin
WORKING IN SPACE BY
China: Cultural Reformation and Economic Transformation.
2006-volume-16-issue-2
