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1. Aircraft Radial Engine
2. Oval Regulation
3. Sewing Machines
4. Malta Cross Movement - Second Hand Movement used to Control the Clock
5. Auto Change File Mechanism
6. Auto Constant Velocity Universal Joint
7. Gun Ammunition Loading System
8. Rotary Engine - An Internal Combustion Engine (the heat rather than the piston movement into rotary movement)
9. Inline Engine - (cylinders lined up side by side)
