TRIZ

Metalworking machines, namely, machining centers; finishing machines, namely, gear cutting and steel and metal finishing machines; automobile motor exhausting and decontaminating device, namely, catalytic converters for motors and engines; transmissions for machines; washing apparatus, namely, vehicle washing machines; automobile motor lubricating oil pump, namely, oil pumps for use in motors and engines; gas operated welding machines; valves being parts of machines; automobile motor muffler, namely, mufflers for motors and engines