Automotive InventionsIn 1963 75, among novelties described in his 600 Soviet patent applications and publications, S. I. Fishgal pioneered in automotive field, including using cavitation, ultrasonics, servo systems for driverless tracking along a buried cable, etc. Then he was suddenly out of the USSR stateless, paperless and almost nameless. Naturally, Fishgal's unpublished works disappeared. The authors other engineering books are "Rock Crushers Inventions, Military
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