THE RUSSIAN FEDERATION
THE FEDERAL SERVICE
FOR INTELLECTUAL PROPERTY,
PATENTS AND TRADEMARKS
THE FEDERAL SERVICE
FOR INTELLECTUAL PROPERTY,
PATENTS AND TRADEMARKS
IPC
F01B1/08 (2006.01)
F16H37/00 (2006.01)
F16H19/04 (2006.01)
F01B1/08 (2006.01)
F16H37/00 (2006.01)
F16H19/04 (2006.01)
RU 2518136 C2
PERPETUAL MOTION THEORY
Fluid pressure difference engine
