2 public-domain matches

Turbogenerator

Cover of Integrated Computer Technologies in Mechanical Engineering – Synergetic Engineering Ⅱ

Integrated Computer Technologies in Mechanical Engineering – Synergetic Engineering Ⅱ

Unknown author

Cover of WIND POWER TURBOGENERATOR FOR HIGH ALTITUDE WIND UTILIZATION

WIND POWER TURBOGENERATOR FOR HIGH ALTITUDE WIND UTILIZATION

H HONNEF