julyhim documents

TRIZ - Improve Your Problem Solving Skills (Tetris Org)
Documents TRIZ - Improve Your Problem Solving Skills (Tetris Org)
Contradictions, Air Bag Applications
Documents Contradictions, Air Bag Applications
And Suddenly the Inventor Appeared (Genrich Altshuller)
Documents And Suddenly the Inventor Appeared (Genrich Altshuller)